A R-T-B sintered magnet comprising a main phase of R2FemB and a grain boundary phase exhibits a high Br and elevated-temperature stability. The magnet is composed of 12.5-17.0 atom% of R which is typically Nd and Pr, 4.5-5.5 atom% of B, at least 70 atom% of T which is Fe and Co, 0.1-3.0 atom% of Mi which is typically Al, Cu or Ga, 0.01-0.5 atom% of M2 which is typically Sn, 0.05-1.0 atom% of M3 which is typically Zr, and up to 0.8 atom% of 0, and the balance of C, N and incidental impurities. The grain boundary phase contains a R-T-(Mi, M2) phase and a R-M2-C phase.
The purpose of the present invention is to provide a control agent and a control method that reduce the number of ants in a colony of ants belonging to the Myrmicinae subfamily. Specifically, provided is a composition at least containing: at least one alarm pheromone compound included in alarm pheromone compositions for ants belonging to the Myrmicinae subfamily; and at least one C19-50 hydrocarbon that is physiologically active on the ants. Also provided are: an ant control agent containing at least this composition, and a container for housing the composition or a support for supporting the composition; and an ant control method using this control agent. Also provided are an ant control agent at least containing: at least one compound for inducing the attack of ants belonging to the Myrmicinae subfamily on other ants of the same subfamily or for repelling the ants; and a container for housing the compound or a support for supporting the compound. Further provided is an ant control method using this control agent.
A01N 35/02 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés organiques comportant un atome de carbone possédant deux liaisons à des hétéro-atomes, avec au plus une liaison à un ha contenant des groupes aldéhyde ou cétone, ou leurs thio-analogues, liés aliphatiquement; Leurs dérivés, p.ex. acétals
A01N 27/00 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des hydrocarbures
The present invention is a spin wave excitation/detection structure for exciting and detecting a spin wave, characterized by comprising: a support substrate; a conductor film provided on the support substrate; an insulated magnetic material film provided on the conductor film; and a conductor wire provided on the insulated magnetic material film. Thus, there is provided a spin wave excitation/detection structure that has high structural strength, is capable of exciting a spin wave with high intensity, and is capable of exciting a wide frequency band of spin wave.
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY (Japon)
Inventeur(s)
Watanabe, Toshiaki
Inoue, Mitsuteru
Goto, Taichi
Abrégé
The present invention is a method for manufacturing a spin wave excitation/detection structure for exciting and detecting a spin wave. The method for manufacturing a spin wave excitation/detection structure comprises: a step for forming an insulated magnetic material film on a donor substrate; a step for fabricating a laminated substrate by laminating a surface of the insulated magnetic material film on the donor substrate with a surface of a support substrate, with a conductor film therebetween; a step for removing the donor substrate from the laminated substrate; and a step for forming a conductor wire on the insulated magnetic material film. In this way, a spin wave excitation/detection structure is manufactured which comprises the support substrate; the conductor film provided on the support substrate; the insulated magnetic material film provided on the conductor film; and the conductor wire provided on the insulated magnetic material film. Thus, there is provided a method for manufacturing a spin wave excitation/detection structure that has high structural strength, is capable of exciting a spin wave with high intensity, and is capable of exciting a spin wave with a wide frequency band.
This batch-type reaction apparatus used for producing a polymer by suspension polymerization using a dispersion auxiliary agent comprises: a reactor having a cylindrical straight body part; a plurality of first cooling pipes disposed inside the reactor and used for circulating a refrigerant; and a stirring shaft disposed inside the reactor, having a stirring blade attached thereto, and configured so as to be rotatable. A representative point of each of the plurality of first cooling pipes in a plane substantially perpendicular to the extension direction of the straight body part is substantially positioned on the circumference of any one of a plurality of virtual circles disposed substantially concentrically in the substantially perpendicular plane. The number Nc [number] of the plurality of virtual circles and the ratio CZ [mg (dispersion auxiliary agent)/kg (monomer)] of the mass of the dispersion auxiliary agent to the mass of one or more types of monomers which are starting materials for the polymer, satisfy a specific relationship.
B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
B01F 27/112 - Agitateurs caractérisés par la configuration des agitateurs avec des bras, des pales ou des lames
B01F 27/90 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe sensiblement vertical avec des palettes ou des bras
B01F 35/93 - Systèmes de chauffage ou de refroidissement disposés à l'intérieur du récipient
B01J 14/00 - Procédés chimiques généraux faisant réagir des liquides avec des liquides; Appareillage spécialement adapté à cet effet
C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
C08F 2/20 - Polymérisation en suspension utilisant des agents de dispersion macromoléculaires
This reaction device comprises: a reactor provided with a straight body part; a stirring shaft; and stirring blades, wherein the dimensions of the straight body part, the dimensions of the stirring blade, and a set value for the rotation speed of the stirring shaft satisfy the relationship represented by N(b/d)(L/D)/n=6Ø N represents the number of the plurality of stirring blades; b represents the maximum value [m] of the blade widths of the plurality of stirring blades; d represents the maximum value [m] of the blade diameters of the plurality of stirring blades; L represents the length [m] in the extending direction of the straight body part; D represents the maximum value [m] of the diameters of a plurality of inscribed circles substantially inscribed in the straight body part in each of the cross sections by a plurality of planes, which are substantially perpendicular to the extending direction of the straight body part, when the straight body part is cut in a plurality of planes passing through respective attachment positions of the plurality of stirring blades; and n represents a set value of the rotation speed [rps] of the stirring shaft.
C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
B01F 27/1125 - Agitateurs caractérisés par la configuration des agitateurs avec des bras, des pales ou des lames avec des pales ou des lames s'étendant parallèlement ou obliquement par rapport à l'axe de l'agitateur
B01F 27/191 - Agitateurs avec plusieurs éléments de mélange montés en séquence sur un même axe avec des éléments similaires
B01F 27/90 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe sensiblement vertical avec des palettes ou des bras
B01F 35/90 - Systèmes de chauffage ou de refroidissement
B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
7.
REACTION APPARATUS AND METHOD FOR PRODUCING VINYL-BASED POLYMER
This reaction apparatus comprises a reactor having a cylindrical shape, and a plurality of first cooling pipes arranged inside the reactor for circulating a coolant. Each of the plurality of first cooling pipes has a meandering portion extending while repeatedly bending. The meandering portion includes a plurality of extending portions that extend linearly or curvedly, and a plurality of bent portions that connect the ends of two adjacent extending portions among the plurality of extending portions. At least two of the plurality of first cooling pipes have different distances from the inner wall surface of the reactor. Of the at least two first cooling pipes, the length of at least some of the plurality of extending portions included in the first cooling pipe having the smallest distance from the inner wall surface of the reactor is less than 2/3 of the length of the circumference of the inner wall surface.
B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
B01F 27/86 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe sensiblement vertical coopérant avec les déflecteurs ou les chicanes fixés au récipient
B01F 35/90 - Systèmes de chauffage ou de refroidissement
C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
8.
Q-SWITCH STRUCTURE AND METHOD OF PRODUCING Q-SWITCH STRUCTURE
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY (Japon)
Inventeur(s)
Watanabe, Toshiaki
Goto, Taichi
Inoue, Mitsuteru
Abrégé
The present invention provides a q-switched structure comprising a solid-state laser medium and a magneto-optical material, wherein the solid-state laser medium and the magneto-optical material are joined and integrated. A first adhesive-adapted antireflection film is formed on one surface of the solid-state laser medium. A second adhesive-adapted antireflection film is formed on one surface of the magneto-optical material. The first adhesive-adapted antireflection film of the solid-state laser medium and the second adhesive-adapted antireflection film of the magneto-optical material are adhered to each other with an optically transmissive material therebetween which is optically transmissive to a laser oscillation wavelength of a laser oscillated from the solid-state laser medium. Thus, a Q-switched structure that contributes to size reduction of a laser device and has high beam quality is provided.
H01S 3/113 - Commutation-Q utilisant des absorbeurs saturables dans la cavité
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
H01S 3/02 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet - Détails de structure
H01S 3/106 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité
9.
Q-SWITCH STRUCTURE AND METHOD OF PRODUCING Q-SWITCH STRUCTURE
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY (Japon)
Inventeur(s)
Watanabe, Toshiaki
Goto, Taichi
Inoue, Mitsuteru
Abrégé
The present invention is a Q-switch structure which comprises a solid-state laser medium and a magnetic optical material, and in which the solid-state laser medium and the magnetic optical material are bonded and thereby integrated, wherein the thickness of the solid-state laser medium is at least 1mm, and the solid-state laser medium and the magnetic optical material are directly bonded. Due to this configuration, provided is a Q-switch that contributes to reducing the size of a laser device, and that can handle high optical output.
H01S 3/11 - Blocage de modes; Commutation-Q; Autres techniques d'impulsions géantes, p.ex. vidange de cavité
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
The present invention provides a 400 to 470 nm wavelength-band optical isolator characterized by being provided with a Faraday rotor having a Verdet constant at least equal to 750 Rad/T·m at wavelengths of 400 nm to 470 nm, and a hollow magnet arranged at the outer circumference of the Faraday rotor, wherein a magnetic flux density B (T) applied to the Faraday rotor lies within the range of formula (1), and an optical path length L (cm) in which the Faraday rotor is arranged lies within the range of formula (2). (1): B=0.40 (2): 0.26=L=0.50. This makes it possible to provide a compact optical isolator having transparency in violet and blue wavelengths of 400 to 470 nm.
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02B 5/30 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques autres que les lentilles Éléments polarisants
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
11.
LIQUID-LIQUID EXTRACTION UNIT AND MULTISTAGE LIQUID-LIQUID EXTRACTION APPARATUS USING THE SAME
A liquid-liquid extraction unit includes a feed compai anent for receiving an aqueous phase and an organic phase, mixing feeder such as a pump for mixing the aqueous and organic phases and conveying the mixture under pressure to a reaction compai anent where the mixture is subjected to an extractive reaction, and a resting compai anent for separating the mixture back into an aqueous phase and an organic phase and from which each phase is recovered.
Provided is a novel device (transplantation device). The transplantation device is either (1) or (2). (1) A transplantation device containing a material (A) having a density of 12 mg/cm3 or higher, and having a dissolution rate of 80% or less after immersion for 24 hours in a normal saline solution at 37°C. (2) A transplantation device containing a material (A) in which the ratio of X/Y is at least 0.24, with X (mg/cm3) being the density and Y (times) being the degree of swelling after immersion for 60 minutes in a normal saline solution at 37°C, and which has a dissolution rate of 80% or less after immersion for 24 hours in a normal saline solution at 37°C.
A61L 27/16 - Matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61L 27/36 - Matériaux pour prothèses ou pour revêtement de prothèses contenant des constituants de constitution indéterminée ou leurs produits réactionnels
A61L 27/44 - Matériaux composites, c. à d. en couches ou contenant un matériau dispersé dans une matrice constituée d'un matériau analogue ou différent comportant une matrice macromoléculaire
A61L 27/50 - Matériaux caractérisés par leur fonction ou leurs propriétés physiques
Provided is a novel device (transplant device) that contains gelatine. The transplant device is formed using a bioabsorbable non-woven fabric containing gelatine.
A61L 27/16 - Matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61L 27/36 - Matériaux pour prothèses ou pour revêtement de prothèses contenant des constituants de constitution indéterminée ou leurs produits réactionnels
This perfluoropolyether-based adhesive composition contains: (A) a linear perfluoropolyether compound containing two or more alkenyl groups in one molecule and having a number average molecular weight of 2,000 or more and a mass reduction rate of 1% or less when heated at 150 °C for 1 hour; (B) a fluorine-containing organohydrogen polysiloxane compound which contains at least one fluorine-containing organic group, and does not contain an epoxy group and a trialkoxysilyl group, and which has a number average molecular weight of 1,000-4,000 and a mass reduction rate of 20% or less when heated at 150 °C for 1 hour; (C) a platinum group metal compound; and (D) an organohydrogen polysiloxane compound which contains at least one of each of an epoxy group and/or a trialkoxysilyl group bonded to a silicon atom via a carbon atom or a carbon atom and a hydrogen atom, and which has a number average molecular weight of 700 or more, wherein the perfluoropolyether-based adhesive composition is used to provide a cured product of a fluorine-containing elastomer which has decreased contamination of peripheral parts caused by an outgas generated during heat-curing.
A paramagnetic garnet-type transparent ceramic that exhibits a high laser damage threshold, said ceramic being a sintered body of a Tb-containing rare earth-aluminum garnet represented by formula (1), and being characterized in that the average sintered grain size is 10-40 µm, and the insertion loss at a wavelength of 1,064 nm in the optically effective region along the length direction of a 20 mm-long sample is 0.05 dB or less. Formula (1): (Tb1-x-yYxScy)3(Al1-zScz)5O12 (In the formula, 0=x<0.45, 0=y<0.08, 0=z<0.2, and 0.001
C01F 17/10 - Préparation ou traitement, p.ex. séparation ou purification
C01F 17/34 - Aluminates, p.ex. YAlO3 ou Y3-xGdxAl5O12
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
A sintered body of Tb-containing rare earth aluminum garnet represented by formula (1) (Tb1-x-yYxScy)3(Al1-zScz)5O12 (1) (where 0 < x < 0.45, 0 < y = 0.1, and 0.004 < z < 0.2), wherein: |a - b| = 0.1 when at least 900 nm < ? < 1,100 nm, where, in terms of a total light transmittance spectrum on an optical path length of 24 mm, a% is the total light transmittance at the wavelength 900 nm and b% is the total light transmittance at any wavelength ? more to the long-wavelength side than 900 nm; and no thermal lensing effect is produced even with respect to a 100-W laser output, allowing for use as a Faraday rotator of a high-power fiber laser.
C01F 17/10 - Préparation ou traitement, p.ex. séparation ou purification
C01F 17/34 - Aluminates, p.ex. YAlO3 ou Y3-xGdxAl5O12
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
A method produces transparent ceramics having high transmittance and no bubble defects with uniform insertion loss over the entire inner surface thereof The method comprising the steps of: obtaining a candidate composition containing a binder, optionally a dispersant, and optionally a plasticizer; dissolving the candidate composition in a solvent, then reducing a contained solvent volume to 0.1% by mass or less, and measuring a glass transition temperature; selecting a candidate composition having a glass transition temperature of 25 C or more and 60 C or less as an organic additive composition; preparing the organic additive composition containing the binder, optionally the dispersant, and the plasticizer, and having the composition obtained in the selecting step; pulverizing a raw material for sintering formed from metal oxide powder and the organic additive composition to obtain a pulverized mixture; granulating the pulverized mixture; sintering the granulated mixture to obtain a sintered body; and pressurizing the sintered body.
C04B 35/01 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes
G02B 1/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques
18.
BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL FILM PRODUCTION METHOD, FARADAY ROTATOR, AND OPTICAL ISOLATOR
Provided is a production method for a bismuth-substituted rare earth iron garnet single crystal film wherein a crack, or the like, does not occur readily. The bismuth-substituted rare earth iron garnet single crystal film production method according to the present invention uses a paramagnetic garnet substrate having a lattice constant Ls to grow the bismuth-substituted rare earth iron garnet single crystal film represented by composition formula (Ln3-aBia)(Fe5-bAb)O12. The bismuth-substituted rare earth iron garnet single crystal film production method comprises a step of forming on the substrate surface a buffer layer having a mean lattice constant Lb (with the proviso that Lb > Ls) to a thickness of 5 to 30 ?m, and a step of growing, superimposed on the buffer layer, 100 ?m or more of the target bismuth-substituted rare earth iron garnet crystal film having a mean lattice constant Lf (with the proviso that Lf > Lb). The invention is characterized by a steep lattice constant change rate in the buffer layer compared to the lattice constant change rate in the bismuth-substituted rare earth iron garnet crystal film. The proviso is that, in the composition formula: Ln is selected from among Y, an element selected from among lanthanoids (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu), and a trace element selected from among Ca, Mg, Zr, and Hf; and A represents one or more elements selected from among Al, Ga, In, Sc, Ti, Si, Ge and Sn.
C30B 29/28 - Oxydes complexes de formule A3Me5O12, dans laquelle A est un métal des terres rares et Me est Fe, Ga, Sc, Cr, Co ou Al, p.ex. grenats
C30B 19/04 - Croissance d'une couche épitaxiale à partir de la phase liquide en utilisant des solvants fondus, p.ex. des fondants le solvant étant un constituant du cristal
19.
BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL, FARADAY ROTATOR, OPTICAL ISOLATOR, AND METHOD FOR PRODUCING BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL
Provided is a bismuth-substituted rare earth iron garnet single crystal which suppresses valence fluctuation of Fe ions and is suitable for a Faraday rotator and optical isolator having reduced insertion loss. The bismuth-substituted rare earth iron garnet single crystal according to the present invention is characterized by being represented by the compositional formula (TbaLnbBicMg3-(a+b+c)) (FedGaeTifPt5-(d+e+f)) O12. In this compositional formula, 0.02?f?0.05, 0.02?{3-(a+b+c)}?0.08, and -0.01?{3-(a+b+c)}-{f+5-(d+e+f)}?0.01. Additionally, Ln is a rare earth element, and may be selected from Eu, Gd, Ho, Tm, Yb, Lu, and Y.
C30B 29/28 - Oxydes complexes de formule A3Me5O12, dans laquelle A est un métal des terres rares et Me est Fe, Ga, Sc, Cr, Co ou Al, p.ex. grenats
C30B 19/04 - Croissance d'une couche épitaxiale à partir de la phase liquide en utilisant des solvants fondus, p.ex. des fondants le solvant étant un constituant du cristal
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
20.
BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL, FARADAY ROTATOR, OPTICAL ISOLATOR, AND PRODUCTION METHOD FOR BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL
Provided is a bismuth-substituted rare earth iron garnet single crystal that suppresses valence variation of Fe ions and is suitable in a Faraday rotator or optical isolator in which insertion loss is reduced. A bismuth-substituted rare earth iron garnet single crystal according to the present invention is characterized by being represented by the compositional formula (GdaLnbBicMg3-(a+b+c))(FedGaeTifPt5-(d+e+f))O12. In the compositional formula, 0.02 ? f ? 0.05, 0.02 ? {3-(a+b+c)} ? 0.08, and -0.01 ? {3-(a+b+c)}-{f+5-(d+e+f)} ? 0.01. Furthermore, Ln is a rare earth element that may be selected from Eu, Dy, Gd, Ho, Tm, Yb, Lu, and Y.
C30B 29/28 - Oxydes complexes de formule A3Me5O12, dans laquelle A est un métal des terres rares et Me est Fe, Ga, Sc, Cr, Co ou Al, p.ex. grenats
C30B 19/04 - Croissance d'une couche épitaxiale à partir de la phase liquide en utilisant des solvants fondus, p.ex. des fondants le solvant étant un constituant du cristal
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
A method for producing a vinyl polymer including a polymerization step of using a composition including a microcapsule and polymerizing a vinyl monomer by radical reaction to produce a vinyl polymer, in which the microcapsule has a core/shell structure, and the shell includes a water-soluble polymer and the core includes an organic peroxide. The water-soluble polymer is preferably at least one water-soluble polymer selected from the group consisting of polyvinyl alcohol, cellulose derivatives, gelatin, poly(meth)acrylic acid derivatives, polyvinylpyrrolidone, and polyethylene oxide.
A microcapsule includes a core/shell structure, in which the shell includes a water-soluble polymer and the core includes an organic peroxide. The water-soluble polymer is preferably at least one water-soluble polymer selected from the group consisting of polyvinyl alcohol, gelatin, poly(meth)acrylic acid derivatives, polyvinyl pyrrolidone, and polyethylene oxide. The polyvinyl alcohol is preferably partially saponified polyvinyl alcohol having a degree of saponification of 80% by mole or more and 99.5% by mole or less and an average degree of polymerization of 1,500 or more and 3,500 or less.
A Faraday rotator and an optical isolator having a high transmittance and a high Verdet constant are provided. The optical isolator includes at least a Faraday rotator that rotates a polarization plane of incident light in a non-reciprocal manner, a polarizer disposed on a light incident side of the Faraday rotator, and an analyzer disposed on a light exit side of the Faraday rotator. The Faraday rotator is made of an oxide containing ytterbium oxide (Yb2O3), and is manufactured by a ceramic manufacturing process, wherein the oxide is allowed to contain an oxide of a metal other than ytterbium, and the proportion of ytterbium in all metal atoms in the oxide is 80% or more.
G02B 5/30 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques autres que les lentilles Éléments polarisants
G02B 6/27 - Moyens de couplage optique avec des moyens de sélection et de réglage de la polarisation
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
H01S 3/00 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
The present invention is an optical isolator (100) including: a Faraday rotator (3) containing trivalent-ion-substituted terbium aluminum garnet (TAG); a central hollow magnet (5) disposed around the Faraday rotator (3); and first and second hollow magnet units (6, 7) disposed so as to sandwich the central hollow magnet in an optical axis direction, and satisfying 0 < B (1) and 14.0 = L = 24.0 (2), where B [T] signifies the magnetic flux density at the Faraday rotator, and L [mm] signifies the length of an optical path on which the Faraday rotator is disposed. Accordingly, the present invention provides an optical isolator that contributes to a reduction in the thermal lensing effect, which is a concern with high-output fiber lasers, compared with conventional Faraday rotators such as those made of terbium gallium garnet (TGG) crystal.
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
Provided are a practical method for manufacturing TAG single crystal. The method of manufacturing a garnet type crystal brings a raw material solution into contact with a substrate formed of a Y3Al5O12 crystal or a Dy3Al5O12 crystal and performs liquid phase epitaxial growth. The garnet type crystal is represented by (Tb3-x-y R x Bi y)Al5O12 (R is one or more elements selected from Y or a lanthanoid (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu), 0<= x, and 0 <= y)).
C30B 29/28 - Oxydes complexes de formule A3Me5O12, dans laquelle A est un métal des terres rares et Me est Fe, Ga, Sc, Cr, Co ou Al, p.ex. grenats
C30B 19/00 - Croissance d'une couche épitaxiale à partir de la phase liquide
G02B 1/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques faits de substances polarisantes
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
26.
FARADAY ROTATOR, OPTICAL ISOLATOR, AND METHOD OF MANUFACTURING FARADAY ROTATOR
Provided are a Faraday rotator having a high light transmittance and a high Verdet constant and an optical isolator using the same. The Faraday rotator of the present invention contains a garnet type crystal represented by (Tb 3-x-yRxBi y)Al 5 O12 (R represents one or more elements selected from Y, Er, Yb, or Lu, 0 < x, and 0 <= y). It is preferable that the Faraday rotator contains a garnet type crystal represented by (Tb 3-x-yRxBi y)AI 5O12 (R is one or more elements selected from Y or a lanthanoid (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu), 0 <= x, and 0 < y)).
G02B 1/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques faits de substances polarisantes
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
A small, low-cost 1.5-stage optical isolator has, in a forward direction, incoming light and outgoing light polarization directions that are parallel. The isolator includes a first Faraday rotator, a first polarizer, a second Faraday rotator and a second polarizer arranged in order on a light transmission path, and a magnet arranged so as to apply a same-direction magnetic field to the first Faraday rotator and the second Faraday rotator. Faraday rotation in the first Faraday rotator and Faraday rotation in the second Faraday rotator occur in opposite directions.
The present invention is a polarization independent optical isolator including two polarizing separation members each configured to separate polarization components of a transmitted light, an absorptive polarizer arranged on optical paths of separated transmitted lights and corresponding to a plane of polarization of each separated transmitted light, and a Faraday rotator, wherein the Faraday rotator is arranged downstream of the absorptive polarizer in a forward direction. As a result, there can be provided a polarization independent optical isolator that requires no stray light processing of separated optical feedback and shows high isolation.
Provided is a transparent spinel sintered body which is formed from an Mg-Al spinel powder having an Al/Mg ratio of from 1.97 to 2.03 or a mixed powder of an Mg oxide and an Al oxide, and wherein the total content of metal impurities excluding Al and Mg is less than 100 ppm. A sample of this transparent spinel sintered body having a thickness of 3 mm has a total light transmittance of 80% or more in the thickness direction for the wavelength range of from 190 nm to 400 nm; and this transparent spinel sintered body is usable as a medium that transmits light from an ultraviolet light emitting element.
G02B 1/02 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques faits de cristaux, p.ex. sel gemme, semi-conducteurs
30.
LIGHT GUIDE BODY, OPTICAL MODULE, AND OPTICAL PATH AND OPTICAL AXIS ADJUSTMENT METHOD
The present invention is a light guide body for adjusting the optical axis of an optical path, the light guide body characterized by comprising a silicon single crystal having an extinction ratio of at least 30 dB. In particular, the present invention is a light guide body in which only one side surface of the light guide body is joined and fixed to a base. The present invention is also an optical module characterized by being provided with the abovementioned light guide body installed so that the installation angle thereof is adjusted to adjust the optical axis of an optical path between components. The present invention is also a method for adjusting the optical axis of an optical path, characterized by comprising adjusting the optical axis of an optical path between components by adjusting the installation angle of the abovementioned light guide body. A light guide body can thereby be provided whereby polarization characteristics are not adversely affected and the optical axis of an optical path can easily be adjusted. An optical module and a method for adjusting the optical axis of an optical path which use such a light guide body can also thereby be provided.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
The purpose of the present invention is to provide an optical isolator with which costs are reduced, which occupies less space, which is lightweight, and for which the reliability of a bond between the optical isolator and a member is high regardless of the effect of thermal expansion and so forth. The present invention provides an optical isolator that includes: an optical isolator chip (7) in which a first polarizer (3), a Faraday rotator (4) composed of a ferromagnetic substance, and a second polarizer (5) are bonded and fixed to each other in this order; and a magnet (12) that is for applying a magnetic field to the optical isolator chip (7). An incident end surface or an emission end surface of the optical isolator chip (7) is bonded and fixed to a member (11). The center of magnetic flux formed by the magnet (12) on the optical axis of the optical isolator is located closer to the end surface of the optical isolator chip (7) that is bonded and fixed to the member (11) than a center position of the Faraday rotator (4) along the optical axis. Due to this configuration, an optical isolator is provided for which the reliability of the bond between the optical isolator and the member (11) is high.
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
32.
METHODS OF PRODUCING CERAMIC MOLDED PRODUCT AND TRANSPARENT SINTERED BODY
A transparent sintered body having fewer air bubble-derived defects is provided. More specifically, a method is provided of producing a ceramic molded product including at least a step of pressure-molding ceramic granules having a Hausner ratio, which is a quotient obtained by dividing a tapped bulk density by a loose bulk density, of 1.0 or more but not more than 1.2. Also provided is a method of producing a transparent sintered body including at least each of the steps of the above method to obtain a ceramic molded product and a step of heating and sintering the resulting ceramic molded product. The transparent sintered body has a linear transmittance of 78% or more at a wavelength of 600 nm to 2000 nm inclusive except for an element-derived characteristic absorption wavelength.
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
33.
MAGNETO-OPTICAL MATERIAL, METHOD FOR PRODUCING SAME AND MAGNETO-OPTICAL DEVICE
Provided, as a transparent magneto-optical material which does not absorb fiber laser light within a wavelength range of 0.9-1.1 µm and is thus suitable for constituting a magneto-optical device such as an optical isolator wherein the formation of a thermal lens is suppressed, is a magneto-optical material which is composed of a transparent ceramic that contains a composite oxide represented by formula (1) as a main component, or which is composed of a single crystal of a composite oxide represented by formula (1). Tb2xR2(2-x)O8-x (1) (In the formula, 0.800 < x < 1.00, and R represents at least one element selected from the group consisting of silicon, germanium, titanium, tantalum, tin, hafnium and zirconium (excluding the cases where R represents only silicon, germanium or tantalum).)
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
G02B 1/02 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques faits de cristaux, p.ex. sel gemme, semi-conducteurs
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
34.
WATER-ABSORBING (METH) ACRYLIC RESIN WITH OPTICAL EFFECTS, AND RELATED COMPOSITIONS
A water-absorbing polymer obtained from (A) a phosphate-containing (meth)acrylic monomer and/or a salt thereof, (B) a monomer having one (meth)acrylic group within the molecule and/or a salt thereof other than component (A), and (C) an organopolysiloxane having a (meth)acrylic group at both ends and related compositions.
A61K 8/06 - Cosmétiques ou préparations similaires pour la toilette caractérisés par une forme physique particulière Émulsions Émulsions
A61K 8/72 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires
A61K 8/81 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons insaturées carbone-carbone
A61Q 1/00 - Préparations pour le maquillage; Poudres corporelles; Préparations pour le démaquillage
A61Q 19/00 - Préparations pour les soins de la peau
35.
METHOD FOR PRODUCING TRANSPARENT CERAMIC, TRANSPARENT CERAMIC, MAGNETO-OPTICAL DEVICE AND RARE EARTH OXIDE POWDER FOR SINTERING
A starting material powder, which contains a rare earth oxide that is composed of terbium oxide and at least one other rare earth oxide selected from among yttrium oxide, scandium oxide and oxides of lanthanide rare earth elements (excluding terbium) and a sintering assistant that is formed of an oxide of at least one element selected from among group 2 elements and group 4 elements, is produced by having (a) terbium ions, (b) ions of at least one other rare earth element selected from among yttrium ions, scandium ions and lanthanide rare earth ions (excluding terbium ions) and (c) ions of at least one element selected from among group 2 elements and group 4 elements coprecipitate in an aqueous solution containing the components (a)-(c), then filtering and separating the coprecipitate, and subjecting the separated coprecipitate to thermal dehydration. A transparent ceramic of a rare earth oxide containing terbium oxide, which is reduced in insertion loss by improving the uniformity of crystal structure, is produced using this starting material powder.
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
C01F 17/206 - Composés ne contenant que des métaux des terres rares comme l'élément métallique le seul anion étant oxyde ou hydroxyde
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
36.
MAGNETOOPTICAL MATERIAL, MANUFACTURING METHOD THEREFOR, AND MAGNETOOPTICAL DEVICE
This invention provides a transparent magnetooptical material that is suitable for use in a magnetooptical device such as an optical isolator. Said magnetooptical material comprises either a transparent ceramic consisting primarily of a complex oxide that can be represented by formula (1) or a single crystal of such a complex oxide. Said magnetooptical material does not absorb fiber-laser light in the 0.9-1.1 µm wavelength range, does not cause heat lensing, and has a higher Verdet constant than TGG crystals, with a Verdet constant of at least 0.14 min/(Oe·cm) at a wavelength of 1,064 nm. (1) Tb2R2O7 (In formula (1), R represents one or more elements selected from among the group consisting of silicon, germanium, titanium, tantalum, tin, hafnium, and zirconium (but not silicon only, germanium only, or tantalum only).)
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
37.
MAGNETO-OPTICAL MATERIAL, METHOD FOR PRODUCING SAME AND MAGNETO-OPTICAL DEVICE
Provided is a magneto-optical material which does not absorb fiber laser light in a wavelength range of 0.9-1.1 µm and does not cause a thermal lens, while having a larger Verdet constant than TGG crystals, and which is suitable for constituting a magneto-optical device such as an optical isolator. This magneto-optical material is formed of a single crystal of a rare earth oxysulfide that is represented by formula (1) or a transparent ceramic which contains, as a main component, a rare earth oxysulfide that is represented by formula (1), and this magneto-optical material has a Verdet constant of 0.14 min/(Oe?cm) or more at the wavelength of 1,064 nm. (TbxR1-x)2O2S (1) (In the formula, x is 0.3 or more but less than 1; and R represents at least one rare earth element that is selected from the group consisting of yttrium, lutetium, gadolinium, holmium, scandium, ytterbium, europium and dysprosium.)
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
An optical isolator for use with a wavelength band of 600 -800 nm is improved in that it has a Faraday rotator made of an oxide material in which said oxide material contains (Tb x R1-x)2O3 such that 0.5 ~ x ~ 1.0, and R is scandium, yttrium or any lanthanoid but Tb.
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
A61B 18/20 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par application de radiations électromagnétiques, p.ex. de micro-ondes en utilisant des lasers
A61N 5/067 - Thérapie par radiations utilisant un rayonnement lumineux utilisant un rayonnement laser
H01S 5/0683 - Stabilisation des paramètres de sortie du laser en surveillant les paramètres optiques de sortie
39.
HEAT CONDUCTIVE SILICONE COMPOSITION, HEAT CONDUCTIVE LAYER, AND SEMICONDUCTOR DEVICE
Provided is a heat conductive silicone composition disposed between a heat generating electronic component and a member for dispersing heat, wherein the heat conductive silicone composition contains (A) an organopolysiloxane having at least two alkenyl groups in one molecule and having a dynamic viscosity at 25°C of 10 to 100,000 mm2/s, (B) a hydrolyzable dimethylpolysiloxane having three functional groups at one end expressed by formula (1), (C) a heat conductive filler having a heat conductivity of 10 W/m°C or higher, (D) an organohydrogen polysiloxane expressed by formula (2), (E) an organohydrogen polysiloxane containing a hydrogen directly bonded to at least two silicon atoms in one molecule other than component (D), and (F) a catalyst selected from the group consisting of platinum and platinum compounds. The heat conductive silicone composition provides a cured object having a storage modulus, loss modulus, and coefficient of loss within appropriate ranges; peeling and pump out during heating/cooling cycle tending not to occur, and increases in thermal resistance being suppressed.
The invention provides a TRIS-containing vinylic monomer of formula (I) (see formula I) in which: q1 is an integer of from 6 to 20; R1 is hydrogen or methyl; R2 is a diradical of an alkane or cycloalkane which comprises up to 20 carbon atoms and may have one or more ether, thio, amine, carbonyl, or amido linkages in the main chain. The present invention is also related to a polymer, an actinically-crosslinkable silicone- containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of formula (I). In addition, the invention provides a method for making a TRIS-containing vinylic monomer of formula (I).
C07F 7/08 - Composés comportant une ou plusieurs liaisons C—Si
G02B 1/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques caractérisés par la substance dont ils sont faits; Revêtements optiques pour éléments optiques faits de substances organiques, p.ex. plastiques
41.
NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES
A complex alloy of at least three phases comprising a composite alloy composed of an Si single phase and an Si-A1-M alloy phase, and an L phase offers a negative electrode material. M is an element selected from transition metals and metals of Groups 4 and 5, and L is In, Sn, Sb, Pb or Mg. The negative electrode material provides a lithium ion battery with a high capacity and long life. The material itself is highly conductive and increases the energy density per volume of a lithium ion battery.
H01M 4/134 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de métaux, de Si ou d'alliages
42.
LIQUID-LIQUID EXTRACTION UNIT, MULTISTAGE LIQUID-LIQUID EXTRACTION APPARATUS USING THE UNIT, AND MULTISTAGE CONTINUOUS EXTRACTION SYSTEM FOR RARE EARTH ELEMENTS
A liquid-liquid extraction unit includes an extraction/separation tank (10) into which an aqueous phase in bubble form is admitted from an upper inlet (20) in one sidewall and an organic phase in bubble form is admitted from a lower inlet (30) in the one sidewall. The upward moving organic phase is contacted with the downward moving aqueous phase. After contact, the organic phase is discharged through an upper outlet (40) in an opposite sidewall and the aqueous phase is discharged through a lower outlet (50) in the opposite sidewall.
A negative electrode material is provided for lithium ion batteries offering a high capacity and a long cycle life. It is an alloy material consisting essentially of Si, Al, M1, and M2 wherein M1 is a transition metal, and M2 is a metal element of Groups 4 and 5, and having an Si-Al-M1-M2 alloy phase constituting fine crystal grains and an Si phase precipitating along crystal grain boundaries to form a network.
H01M 4/134 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de métaux, de Si ou d'alliages
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
44.
MAGNETO-OPTICAL MATERIAL, FARADAY ROTATOR, AND OPTICAL ISOLATOR
The present invention provides a magneto-optical material containing as a main component an oxide that includes a terbium oxide and having a large Verdet constant at a wavelength in the 1.06 µm region (0.9 to 1.1 µm) and high transparency, and also provides a small-sized optical isolator suitably used in a fiber laser for a processing machine. The magneto-optical material of the present invention contains an oxide represented by Formula (l) below at a content of at least 99 wt%. (TbxR1-x)2O3 (I) wherein x satisfies 0.4 <= x <= 1.0 and R includes at least one element selected from the group consisting of scandium, yttrium, and lanthanoid elements other than terbium.
G02B 5/30 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques autres que les lentilles Éléments polarisants
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
45.
METHOD FOR SYNTHESIZING RARE EARTH METAL EXTRACTANT
A rare earth metal extractant containing, as the extractant component, dialkyldiglycol amide acid which is excellent in breaking down light rare earth elements is reacted in diglycolic acid (X mol) and an esterification agent (Y mol) at a reaction temperature of 70°C or more and for a reaction time of one hour or more such that the mol ratio of Y/X is 2.5 or more, and is subjected to vacuum concentration. Subsequently, a reaction intermediate product is obtained by removing unreacted products and reaction residue. Then a nonpolar or low-polar solvent which is an organic solvent for forming an organic phase during solvent extraction of the rare earth metal and which is capable of dissolving dialkyldiglycol amide acid is added as the reaction solvent, and the reaction intermediate product is reacted with dialkyl amine (Z mol) such that the mol ratio of Z/X is 0.9 or more. As a consequence, a rare earth metal extractant is efficiently synthesized at a low cost and at a high yield without having to use expensive diglycolic acid anhydride and harmful dichloromethane.
C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
C07C 235/06 - Amides d'acides carboxyliques, le squelette carboné de la partie acide étant substitué de plus par des atomes d'oxygène ayant des atomes de carbone de groupes carboxamide liés à des atomes de carbone acycliques et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné le squelette carboné étant acyclique et saturé ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p.ex. des rognures, pour produire des métaux non ferreux ou leurs composés
C22B 59/00 - Obtention des métaux des terres rares
46.
METHOD FOR SYNTHESIZING RARE EARTH METAL EXTRACTANT
A rare earth metal extractant containing, as the extractant component, dialkyldiglycol amide acid which is excellent in breaking down light rare earth elements is reacted in diglycolic acid (X mol) and an esterification agent (Y mol) at a reaction temperature of 70°C or more and for a reaction time of one hour or more such that the mol ratio of Y/X is 2.5 or more, and is subjected to vacuum concentration. Subsequently, a reaction intermediate product is obtained by removing unreacted products and reaction residue, and an aprotic polar solvent is added as the reaction solvent. Then, the reaction intermediate product is reacted with dialkyl amine (Z mol) such that the mol ratio of Z/X is 0.9 or more and the aprotic polar solvent is removed. As a consequence, a rare earth metal extractant is efficiently synthesized at a low cost and at a high yield without having to use expensive diglycolic acid anhydride and harmful dichloromethane.
C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
C07C 235/06 - Amides d'acides carboxyliques, le squelette carboné de la partie acide étant substitué de plus par des atomes d'oxygène ayant des atomes de carbone de groupes carboxamide liés à des atomes de carbone acycliques et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné le squelette carboné étant acyclique et saturé ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques
C22B 3/26 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par extraction liquide-liquide utilisant des composés organiques
C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p.ex. des rognures, pour produire des métaux non ferreux ou leurs composés
C22B 59/00 - Obtention des métaux des terres rares
A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in an aprotic polar solvent, with a molar ratio of dialkylamine to diglycolic anhydride being at least 1.0, and removing the aprotic polar solvent.
C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
C22B 59/00 - Obtention des métaux des terres rares
C07C 235/06 - Amides d'acides carboxyliques, le squelette carboné de la partie acide étant substitué de plus par des atomes d'oxygène ayant des atomes de carbone de groupes carboxamide liés à des atomes de carbone acycliques et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné le squelette carboné étant acyclique et saturé ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques
A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in a synthesis medium. A molar ratio (B/A) of dialkylamine (B) to diglycolic anhydride (A) is at least 1Ø A non-polar or low-polar solvent in which the dialkyl diglycol amic acid is dissolvable is used as the synthesis medium.
C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
C22B 59/00 - Obtention des métaux des terres rares
C07C 235/06 - Amides d'acides carboxyliques, le squelette carboné de la partie acide étant substitué de plus par des atomes d'oxygène ayant des atomes de carbone de groupes carboxamide liés à des atomes de carbone acycliques et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné le squelette carboné étant acyclique et saturé ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques
An optical isolator including a Faraday rotator that has a high Faraday effect and a high transmission factor in a wavelength used is provided. An optical isolator comprises at least: a Faraday rotator; a polarizer arranged on a light incidence side of the Faraday rotator; and an analyzer arranged on a light exit side of the Faraday rotator, wherein the Faraday rotator consists of an oxide that contains an ytterbium oxide (Yb2O3) with a mass ratio of 30% or more.
G02B 6/126 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré utilisant des effets de polarisation
H01S 3/10 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation
H01S 3/13 - Stabilisation de paramètres de sortie de laser, p.ex. fréquence ou amplitude
50.
SOLAR CELL, METHOD FOR MANUFACTURING SOLAR CELL, AND SOLAR CELL MODULE
Disclosed is a solar cell which is provided with: a semiconductor substrate having a light-receiving surface and a non-light-receiving surface; a PN junction section formed on the semiconductor substrate; a passivation layer formed on the light-receiving surface and/or the non-light-receiving surface; and power extraction electrodes formed on the light-receiving surface and the non-light-receiving surface. The solar cell is characterized in that the passivation layer includes an aluminum oxide film having a thickness off 40 nm or less. As a result of forming a aluminum oxide film having a predtermined thickness on the surface of the substrate, it is possible to achieve excellent passivation performance and excellent electrical contact between silicon and the electrode by merely firing the conductive paste, which is conventional technology. Furthermore, an annealing step, which has been necessary to achieve the passivation effects of the aluminum oxide film in the past, can be eliminated, thus dramatically reducing costs.
H01L 31/068 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails adaptés comme dispositifs de conversion photovoltaïque [PV] caractérisés par au moins une barrière de potentiel ou une barrière de surface les barrières de potentiel étant uniquement du type homojonction PN, p.ex. cellules solaires à homojonction PN en silicium massif ou cellules solaires à homojonction PN en couches minces de silicium polycristallin
Solvent extraction from an aqueous phase containing first and second rare earth elements is carried out by contacting an organic phase containing a diglycolamic acid as an extractant and a hydrocarbon or a low-polar alcohol as a solvent, for extracting the first rare earth element into the organic phase, back-extracting from the organic phase with an aqueous acid solution for recovering the first rare earth element, and recovering the second rare earth element which has not been extracted into the organic phase and has remained in the aqueous phase.
C01F 1/00 - Procédés de préparation des composés des métaux béryllium, magnésium, aluminium, calcium, strontium, baryum, radium, thorium ou des terres rares, en général
An oxide is provided that contains the oxide represented by Formula (I) as the main component thereof, that has a Verdet constant at a wavelength of 1.06 µm of at least 0.18 min/(Oe.cndot.cm), and that has a transmittance at a wavelength of 1.06 lam and for an optical length of 3 mm of at least 70%, (Tb x R1-x)2O3 (I) whetein x is 0.4<= x <= 1.0; R includes at least one element selected from a group consisting of scandium, yttrium, lanthanum, europium, gadolinium, ytterbium, holmium and lutetium.
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02F 1/09 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments magnéto-optiques, p.ex. produisant un effet Faraday
53.
ADHESIVE SILICONE RUBBER COMPOSITION AND SEPARATOR SEAL MATERIAL FOR FUEL CELLS
An adhesive silicone rubber composition comprising (A) 100 pbw of an organopolysiloxane containing at least two silicon-bonded alkenyl radicals, (B) 0.5-20 pbw of an organohydrogenpolysiloxane containing at least two Si-H radicals, (C) a hydrosilylation catalyst, and (D) 0.1-50 pbw of an organosilicon compound having at least one phenyl structure, at least one alicyclic epoxy radical, and at least one Si-H radical is applicable to an electrolyte membrane and a separator in a polymer electrolyte fuel cell to form a firm integrally molded part.
Polysaccharide is wet pulverized by ejecting a liquid dispersion of polysaccharide from a pair of nozzles under a high pressure of 70 to 250 MPa to form a pair of jets so that the jets collide against each other. The nozzles are oriented to define a collision angle of 95-178° and the number of pulverizing cycles is adjusted such that the polysaccharide is pulverized to an average particle length which is equal to or less than 1/4 of the initial average particle length while undergoing a reduction in degree of polymerization of less than 10%.
B02C 23/00 - Procédés auxiliaires, dispositifs auxiliaires ou accessoires spécialement adaptés au broyage ou à la désagrégation non prévus dans les groupes ou non adaptés spécialement aux appareillages couverts par un seul des groupes
brevets
