Nippon Telegraph and Telephone Corporation

Japon

 
Quantité totale PI 14 355
Quantité totale incluant filiales 14 923 (+ 773 pour les filiales)
Rang # Quantité totale PI 53
Note d'activité PI 4,7/5.0    17 540
Rang # Activité PI 22
Activité incl filiales 4,6/5.0    17 947
Symbole boursier
ISIN JP3735400008
Capitalisation 12061302144480.0  (JPY)
Industrie Telecom Services
Secteur Communication Services

Brevets

Marques

5 142 0
172 0
9 041 0
0
 
Dernier brevet 2024 - Communication control device, co...
Premier brevet 1976 - Reproducer for an eraseable vide...

Filiales

28 subsidiaries with IP (699 patents, 74 trademarks)

26 subsidiaries without IP

 S'inscrire grtuitement pour accéder à la liste des filiales

Derniers inventions, produits et services

2023 Invention Optical connector, optical module, plug, and connection method. [Problem] The purpose of the pres...
2022 Invention Model generation device, model generation method, and model generation program. This model genera...
Invention Communication quality prediction device, communication quality prediction method, and program. A ...
Invention Action prediction device, action prediction method, and action prediction program. Provided is an...
Invention Optical wireless power supply system, reception device, transmission device, control device, cont...
Invention Model training device, model training method, and model training program. A model training device...
Invention Image generation method, image generation device, and image generation program. In an image gener...
Invention Optical waveguide element and method for manufacturing same. This optical waveguide element compr...
Invention Optical transmission system and optical transmission method. The purpose of the present invention...
Invention Acoustic signal output device. Provided is an acoustic signal output device comprising: a woofer;...
Invention Acoustic signal output device. This acoustic signal output device comprises: a speaker unit; a co...
Invention Acoustic signal outputting device. This acoustic signal outputting device comprises: a speaker un...
Invention Acoustic signal output device. Provided is an acoustic signal output device comprising: a concave...
Invention Acoustic signal output device. The present invention comprises: a speaker unit pair including two...
Invention Semiconductor laser, method of designing diffraction grating layer of semiconductor laser, and me...
Invention Facial expression generation device, facial expression generation method, and facial expression g...
Invention Perceptualization device, perceptualization method, and perceptualization program. This perceptua...
Invention Learning device, learning method, and learning program. This learning device trains an AI model u...
Invention Station layout support device, station layout support method, and program. A station layout suppo...
Invention Resource control device, resource control method, and program. A resource control device accordin...
Invention Station installation design assistancne device, station installation design assistancne method, a...
Invention Station installation design device, and program. A station installation design device according t...
Invention Wireless communication transceiver. A receiver in this wireless communication transceiver compris...
Invention Semiconductor device. This semiconductor device comprises: a substrate (101) composed of a semi-i...
Invention Wireless area design assistance device, wireless area design assistance method, and program. This...
Invention Testing apparatus. A testing apparatus (100) has: an access investigation unit (121a) that invest...
Invention Communication device, frequency offset compensation method, and program. Provided is a communicat...
Invention Noise canceling device, noise canceling method, and program. According to one aspect of the prese...
Invention Power supply system and breakage control method. The purpose of the present disclosure is to inhi...
Invention Graph signal processing device, graph signal processing method, and program. One aspect of the pr...
Invention Optimization device, optimization method, and program. One aspect of the present invention is an ...
Invention Gw apparatus and optical signal processing method. A GW apparatus comprising: a main signal path ...
Invention Optical cross-connect swtiching system and swtiching method. The optical cross-connect switching ...
Invention Transmission interface and transmitter. The transmission interface includes a plurality of trans...
2021 Invention Communication control system, communication control method and program. A communication control ...
Invention Network systems, control methods, databases, controllers, and programs. In order to solve the ab...
Invention Ultraviolet light irradiation system and ultraviolet light irradiation method. An object of the ...
Invention Communication design support apparatus, communication design support method and program. A commu...
Invention Information processing system, ray trace method, and program. An information processing system i...
Invention Optical space communication device and optical space communication method. According to an embod...
Invention Optical transmitting apparatus and optical transmitting method. An optical transmission device i...
Invention Image processing apparatus, method, and program. An image processing device according to an embo...
Invention Server delay control device, server delay control method, and program. An OS (70) includes: a ri...
Invention Optical connecting structure, package structure, optical module and manufacturing method for pack...
Invention Temperature estimation method, temperature estimation program and temperature estimation device. ...
Invention Estimation apparatus, estimation method and program. The estimation apparatus includes: a conver...
Invention Communication control device, communication control method, and communication control program. A...
Invention Resource allocation update device, resource allocation update method, program, and virtual machin...