Nippon Telegraph and Telephone Corporation

Japon

 
Quantité totale PI 11 640
Quantité totale incluant filiales 12 201 (+ 784 pour les filiales)
Rang # Quantité totale PI 70
Note d'activité PI 4,6/5.0    14 409
Rang # Activité PI 29
Activité incl filiales 4,5/5.0    14 826
Symbole boursier
ISIN JP3735400008
Capitalisation 12061302144480.0  (JPY)
Industrie Telecom Services
Secteur Communication Services

Brevets

Marques

4 097 0
176 0
7 367 0
0
 
Dernier brevet 2023 - Photonic integrated optical device
Premier brevet 1976 - Reproducer for an eraseable vide...

Filiales

28 subsidiaries with IP (686 patents, 98 trademarks)

26 subsidiaries without IP

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Derniers inventions, produits et services

2021 Invention Wireless signal measurement system, wireless signal measurement method, and control device. This ...
Invention Evaluation apparatus, evaluation method, and evaluation program. A feature quantity calculation u...
Invention Control device, control method, and program. A control device, which implements controls for a ba...
Invention Tilting sensor and detection system. A tilting sensor 1 comprises: a notification unit 30 for iss...
Invention Wearer identification device, wearer identification system, wearer identification method, and wea...
Invention Multistage amplifier circuit. A multistage amplifier circuit (1) includes multiple amplifier circ...
Invention Ai inference system for image. This AI inference system comprises: an encoder circuit (101) which...
Invention Frequency state observation system, frequency state observation method, and data arithmetic devic...
Invention Verification item generation device, verification item generation method, and program. A verifica...
Invention Optical communication system and optical communication method. With regard to this optical commun...
Invention Outlier value detection device, outlier value detection method, and program. An outlier value det...
Invention Optical transmission system, optical transmission method, and program. Provided is an optical tra...
Invention Dialog learning device, response voice generation device, dialog learning method, response voice ...
Invention Coding parameter computation device, coding parameter computation method, and program. A coding p...
Invention Image processing device, image processing method, and program. An image processing device (10) ac...
Invention Communication system, communication device, method, and program. This communication system accord...
Invention Optical communication system, control device, and optical communication method. In the present in...
Invention Speaking desire estimation device, speaking desire estimation method, and program. A speaking des...
Invention Display control device, display control method, and display control program. This display control...
Invention Generation device, generation method, and generation program. An indicator-of-compromise (IOC) in...
Invention Latching type optical switch. iout122 outputted from the plurality of branch waveguides 14a, 14b;...
Invention Bipolar transistor. This heterojunction bipolar transistor comprises a collector layer (103) that...
Invention Method for producing semiconductor photoelectrode. Provided is a method for producing a semicondu...
Invention Semiconductor photoelectrode. A semiconductor photoelectrode comprises an electroconductive or in...
2020 Invention Position measuring system, position measuring device, and position measuring method. It is an ob...
Invention Photonic integrated optical device. A photonic integrated optical device can implement hybrid in...
Invention Method for producing lithium oxide coated with carbon and lithium oxide coated with carbon. A li...
Invention Carbon dioxide gas-phase reduction device and method for producing porous electrode-supported ele...
Invention Identification apparatus, identification method, and identification program. An identification d...
Invention Optical signal processing apparatus and optical signal processing method. An optical signal proc...
Invention Voice transmission compensation apparatus, voice transmission compensation method and program. A...
Invention Image adjustment apparatus, image adjustment method and program. An image adjustment apparatus i...
Invention Vibration canceling method, apparatus and program. A vibration cancellation method is a vibratio...
Invention Mobile terminal and distributed deep learning system. A mobile terminal includes a sensor that a...
Invention Wavelength variable optical filter. A first component having a plate shape includes a first inci...
Invention Heterojunction bipolar transistor and method of manufacturing the same. A heterojunction bipolar...
Invention Satellite communication earth station and communication control method. A satellite communicatio...
Invention Floating-image display device and floating-image display method. A floating image display appara...
Invention Learning device, learning method, and learning program. A learning device includes processing ci...
Invention Wavelength conversion device. A wavelength conversion device includes a second-order nonlinear o...
Invention Optical semiconductor chip. An optical semiconductor chip of the present disclosure includes a h...
Invention Information processing system, information processing method, data processing device, and program...
Invention Speaker array. The speaker array includes a first speaker 1, a second speaker 2, and a local sou...
Invention Object left-behind detection method, object left-behind detection apparatus, and program. In ord...
Invention Estimation method, simulation method, estimation device, and estimation program. An estimation d...
Invention Optical fiber amplifier and rare earth doped optical fiber. An object of the present disclosure ...
Invention Control system and control method. A control system includes a control device that controls a co...
Invention Counting device, counting method, and counting program. A counting device includes processing ci...
Invention Management device, management method, and management program. A management device includes proce...
Invention Optical communication system and optical communication method. An optical communication system c...