Nippon Telegraph and Telephone Corporation

Japan

 
Total IP 12,486
Total IP incl. subs 13,062 (+ 798 for subs)
Total IP Rank # 64
IP Activity Score 4.7/5.0    15,428
IP Activity Rank # 26
IP AS incl. subs 4.5/5.0    15,852
Stock Symbol
ISIN JP3735400008
Market Cap. 12061302144480.0  (JPY)
Industry Telecom Services
Sector Communication Services

Patents

Trademarks

4,435 0
178 0
7,873 0
0
 
Last Patent 2023 - Inference processing apparatus
First Patent 1976 - Reproducer for an eraseable vide...

Subsidiaries

28 subsidiaries with IP (705 patents, 93 trademarks)

26 subsidiaries without IP

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Latest Inventions, Goods, Services

2023 Invention Authentication key exchange system, device, server, method, and program. An authentication key ex...
2022 Invention Control device, control method, and program. This control device is used for performing a control...
Invention Estimation device, estimation method, and program. Provided is an estimation device for estimatin...
Invention Inrush current prevention device, control device, and inrush current prevention method. Provided ...
Invention Learning device, learning system, learning method, and program. iAiiAiiAiBBiBB when communicating...
Invention Cylindrical multi-core ferrule and optical connector. The purpose of the present disclosure is to...
Invention Optical transceiver, communication device, and power supply control method. This optical transcei...
Invention Policy control device, zero trust system, policy control method, and policy control program. Prov...
Invention Control device, control method, measuring system, and program. A measuring system (1) comprises a...
Invention Optical module. Provided is an optical module that causes no degradation of high frequency charac...
Invention Observation device. Provided is an observation device comprising a light source (101) which emits...
Invention Wavelength conversion device. A variable wavelength conversion device according to the present di...
Invention Analysis device and program. regreg containing a prescribed loss function L.
Invention Monitoring device and monitoring method. According to the present invention, a determination unit...
Invention Encoding device, encoding method, and program. In a communication system provided with a set of e...
Invention Core position specifying method, optical fiber connecton method, and optical fiber connection dev...
Invention Interference evaluating method, interference evaluating device and interference evaluating progra...
Invention Device and method for measuring loss of plurality of optical fibers at once. The purpose of the p...
Invention Communication bandwidth calculation device, communication bandwidth calculation method, and progr...
Invention Device, method, and program for estimating emotion. A device for estimating emotion according to ...
Invention Accelerator offloading device, accelerator offloading system, and accelerator offloading method. ...
Invention Point group data display device, point group data storage device, point group data display method...
Invention Method for predicting received power and system for predicting received power. In this method for...
Invention Reception power predicting method, and reception power predicting system. In this reception power...
Invention Training method, propagation characteristic estimation method, propagation characteristic estimat...
2020 Invention Congestion control method, congestion control device, and congestion control program. A congesti...
Invention Ultraviolet light irradiation system and decontamination method. An object of the present invent...
Invention Detection device, detection method, and detection program. The detection device (10) has the sig...
Invention Posture decision apparatus, posture decision method and program. A posture determination device ...
Invention Several mode fiber test method and several mode fiber test device. An object of the present disc...
Invention Power coupling coefficient measuring method and power coupling coefficient measuring device. An ...
Invention Device control apparatus, device control program, environment classification apparatus, and actua...
Invention Display control device, display control method, and display control program. A display control a...
Invention Inference processing apparatus. An inference processing device uses a learned neural network to ...
Invention Optical access system, optical transmitter, optical receiver, optical transmission method and dem...
Invention Optical complex amplitude measurement device and optical complex amplitude measurement method. A...
Invention Branch ratio setting system, method for producing optical communication system and optical branch...
Invention Sound measurement method. An optical phase modulation amount measurement technology using sound ...
Invention Base station, communication method, and communication program. A base station (10-1) includes a ...
Invention Communication system, connection destination control method, control apparatus and program. Ther...
Invention Transmitting side transmission device, receiving side transmission device, redundancy method of t...
Invention Optical fiber and its connection method. An object of the present disclosure is to enable an opt...
Invention Network virtualization system, virtual resource management device, virtual resource management me...
Invention Remote rendering system, image processing method, server device, and program. An object of the p...
Invention Thermal throttling supression device, thermal throttling supression method, and thermal throttlin...
Invention Utterance understanding support system, method, device and program. An object of the present inv...
Invention Sound signal decoding method, sound signal decoder, program, and recording medium. There is prov...
Invention Position sense correction device, method, and program. A position sense correction device accord...
Invention Apparatus, method, and program for home device management. A home equipment management apparatus...
Invention Message generation apparatus, message presentation apparatus, message generation method, and mess...