Nippon Telegraph and Telephone Corporation

Japon

 
Quantité totale PI 15 788
Quantité totale incluant filiales 16 374 (+ 790 pour les filiales)
Rang # Quantité totale PI 52
Note d'activité PI 4,7/5.0    18 209
Rang # Activité PI 21
Activité incl filiales 4,6/5.0    18 630
Symbole boursier
ISIN JP3735400008
Capitalisation 12061302144480.0  (JPY)
Industrie Telecom Services
Secteur Communication Services

Brevets

Marques

5 698 0
166 0
9 924 0
0
 
Dernier brevet 2024 - Notification apparatus, system, ...
Premier brevet 1976 - Reproducer for an eraseable vide...

Filiales

28 subsidiaries with IP (721 patents, 69 trademarks)

26 subsidiaries without IP

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Derniers inventions, produits et services

2023 Invention Evaluation device, evaluation method, and program. This evaluation device: receives a value corre...
Invention Radio communication system, radio station, radio communication method, and radio communication pr...
Invention Wireless communication system, analysis device, wireless communication method, and program for an...
Invention Estimation device, estimation method, and estimation program. Provided is an estimation device (1...
Invention Wireless communication system, wireless communication method, wireless communication device, and ...
Invention Data conversion device, data conversion method, and program. This data conversion device comprise...
Invention Voice recommendation device, voice recommendation method, and program. A voice recommendation dev...
Invention Wireless power supply system. A wireless power supply system according to the present disclosure ...
Invention Information collection device, information collection method, and information collection program....
Invention Electrode of field effect transistor, field effect transistor, and method for manufacturing elect...
Invention Random number generator and random number generation method. A random number generator 1 comprise...
Invention Training device, training method, and program. This training device trains a plurality of control...
Invention Graph generation method, graph generation device, and program. This graph generation method, whic...
Invention Information processing device, information processing method, and program. This information proce...
Invention Information processing device, information processing method, and information processing program....
Invention Conversion device, conversion method, and conversion program. A conversion device 10 comprises: a...
Invention Text conversation support device, method, and program. According to one aspect of the present inv...
Invention Predictor creation device, prediction device, and program. Provided is a predictor creation devic...
Invention Monitoring control method for optical transmission device and optical transmission device. The pr...
Invention Battery. This battery comprises a first gel membrane (101), a cation exchange membrane (102), a s...
Invention Conversion device, conversion method, time synchronization system, and program. A conversion devi...
Invention Evacuation information provision device, evacuation information provision method, evacuation info...
Invention Electric power transmission device. The objective of the present disclosure is to increase a poss...
Invention Object detection percentage calculation device, object detection percentage calculation method, a...
Invention Optical transmission and reception device and computer program. Provided is an optical transmissi...
Invention Calculation device, calculation method, and program. This calculation device calculates the capac...
Invention Communication control system. The present disclosure is a communication device comprising: a flow...
Invention Light-receiving element. This light-receiving element comprises: a p-type first semiconductor lay...
Invention Optical receiver and signal detection method. This optical receiver comprises: a vector sum estim...
Invention Optical connector connection jig and optical connector connection method. An optical connector co...
Invention Training device, training method, and training program. A training device (10) comprises: a gener...
Invention Model learning device, model learning method, and model learning program. A model learning device...
Invention Learning device for action recognition device, action recognition device, learning method, and le...
Invention Optical network system and optical signal processing method. An optical network system 1 comprise...
Invention Secure computation device, secure computation method, and program. A secure computation device ac...
Invention Secure computing device, secure computing method, and program. This secure computing device inclu...
Invention Optical path design device, optical path design method, and optical path design program. An optic...
Invention Water-repellent film. This water-repellent film comprises an oil layer (102) formed on a substrat...
2021 Invention Notification apparatus, system, and program. A notification apparatus includes circuitry configu...
Invention Optical connection module. An object of this disclosure is to enable space saving of an optical ...
Invention Measurement device. The measurement device includes a measurement apparatus and a contact appara...
Invention Learning apparatus, analysis apparatus, learning method, analysis method, and program. An aspect...
Invention Grip strength increasing apparatus, grip strength increasing method, and program. A grip strengt...
Invention Ultraviolet light irradiation sheet. An object of the present invention is to provide an ultravi...
Invention Intermediate apparatus, communication method, and program. An intermediate device 10A is the int...
Invention Control apparatus, control system, control method, and program. Provided is a control apparatus ...
Invention Communication systems, control methods, controllers, and programs. The present invention aims to...
Invention Wireless relay system, wireless relay method, software defined radio device. A radio relay syste...
Invention Ising model calculator. A calculation device that simulates spin states of a finite-temperature ...
Invention Semiconductor laser. A semiconductor laser is a DFB laser including an active layer formed in a ...