Nippon Telegraph and Telephone Corporation

Japan

 
Total IP 4,727
Total IP incl. subs 5,187 (+ 683 for subs)
Total IP Rank # 201
IP Activity Score 4.2/5.0    5,028
IP Activity Rank # 107
IP AS incl. subs 4/5.0    5,272
Stock Symbol
ISIN JP3735400008
Market Cap. 8698759336200.0  (USD)
Industry Telecom Services
Sector Communication Services

Patents

Trademarks

1,299 0
422 0
3,006 0
0
 
Last Patent 2020 - Model training apparatus, model ...
First Patent 1976 - Reproducer for an eraseable vide...

Subsidiaries

22 subsidiaries with IP (568 patents, 115 trademarks)

30 subsidiaries without IP

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Latest Inventions, Goods, Services

2020 Invention Wireless communication system and wireless communication method. A format that includes a BSSID ...
Invention Image conversion device, image conversion model training device, method, and program. The present...
Invention Optical 90-degree hybrid circuit. The objective of the present invention is to provide an optical...
Invention Wireless communication system and wireless communication method. Provided is a wireless communica...
Invention Wireless communication performance measurement method, wireless communication performance measure...
Invention Model learning device, data analysis device, model learning method, and program. This model learn...
Invention Utterance pair acquisition device, utterance pair acquisition method, and program. The present in...
Invention Spoken sentence expansion device, spoken sentence generation device, spoken sentence expansion me...
Invention Identification device, identification method, identification processing program, generation devic...
Invention Optical waveguide component and manufacturing method therefor. Provided is an optical waveguide c...
Invention Adapting device. This adapting device according to an embodiment comprises: a first storage unit ...
Invention Semiconductor light receiving element. Provided is a semiconductor light receiving element which ...
Invention Time comparison system, time comparison device, and time comparison method. [Problem] To inexpens...
Invention Analysis device, analysis method, and program. The present invention provides an analysis device ...
Invention Command analysis device, command analysis method, and program. Provided is a command analysis dev...
Invention Video processing device, video processing method, and video processing program. When a plurality ...
Invention Tree-structured data processing system, tree-structured data processing method, tree-structured d...
Invention Temperature measuring device and temperature measuring method. The purpose of the present inventi...
Invention Light-receiving device and light receiver. The present invention is provided with: a plurality of...
Invention Communication system, communication device, and terminal device. The purpose of the present inven...
Invention Danger prediction method and danger prediction device. The objective of the present invention is ...
Invention Information processing system, information processing terminal, server apparatus, information pro...
Invention Optical connection structure. The purpose of the present invention is to provide an optical conne...
Invention Optical connecting structure. The objective of the present invention is to provide an optical con...
Invention Optical waveguide. This optical waveguide comprises a core (103) and a slab layer (102) that are ...
Invention Sns analysis system, sns analysis method, and program. A SNS (Social Networking Service) analysis...
Invention Similar transition identification device, similar transition identification method, and program. ...
Invention Book search device, book search database generation device, book search method, book search datab...
Invention Input value setting support device, input value setting support method, and program. This input v...
Invention Communication system and communication method. Disclosed is a communication system which, through...
Invention Registration system, registration method, and registration program. A registration device (10) is...
Invention Wireless communication system, wireless communication method, transmission station device, and re...
Invention Wireless communication system, wireless communication method, transmitting station device, and r...
Invention Signal transfer system, signal transfer method, and route control device. The present invention i...
Invention Multiplex transmission system and multiplex transmission method. In the present invention, an upl...
Invention Data analysis device, data analysis method, and data analysis program. A data analysis device (10...
Invention Classification device, classification method, and classification program. A classification device...
Invention Signal forwarding system, signal forwarding device, path control device, and signal forwarding me...
Invention Wearable sensor and perspiration analysis device. The present invention performs long-term analys...
Invention Dialog action estimation device, dialog action estimation method, dialog action estimation model ...
Invention Position estimating method, position estimating system, position estimating server, and position ...
Invention Wireless communication system, control station device, and wireless base station device. A wirele...
Invention Calculation method for wireless base station installation positions and installation position cal...
Invention Distributed circuit. [Problem] To improve circuit gain. A distributed amplifier is configured fro...
2019 Invention Utterance image creation device, utterance image creation method, and program. This utterance ima...
Invention Visible light source. Provided is a visible light source in which laser diode degradation is prev...
Invention Optical multiplexing circuit and light source. Provided is an optical multiplexing circuit that c...
Invention Optical multiplexing circuit and light source. The present invention measures a change in the osc...
2018 Invention Key exchange system, terminal device, key exchange method, program, and recording medium. In Rou...
Invention Model training apparatus, model training method, and program. An apparatus for training a model ...