Nippon Telegraph and Telephone Corporation

Japan

 
Total IP 16,666
Total IP incl. subs 17,264 (+ 801 for subs)
Total IP Rank # 51
IP Activity Score 4.7/5.0    18,536
IP Activity Rank # 20
IP AS incl. subs 4.6/5.0    18,953
Stock Symbol
ISIN JP3735400008
Market Cap. 12061302144480.0  (JPY)
Industry Telecom Services
Sector Communication Services

Patents

Trademarks

5,978 0
151 0
10,537 0
0
 
Last Patent 2025 - Optical fiber
First Patent 1976 - Reproducer for an eraseable vide...

Subsidiaries

26 subsidiaries with IP (733 patents, 68 trademarks)

28 subsidiaries without IP

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Latest Inventions, Goods, Services

2024 Invention Data transfer device and computer system. A data transfer device (30) is provided with a pluralit...
2023 Invention Communication device. This communication device comprises: an interface that, when a host communi...
Invention Control device and control method. This control device comprises: a plurality of communication st...
Invention Training device and inference device. One aspect of the present invention is a training device pr...
Invention Protective article. This protective article (1) for protecting a cable (2) comprises: an outer wa...
Invention Protective article. A protective article (1) for protecting cables (2) comprises: one or more cir...
Invention Detection device and detection method. A detection device (10) comprises: a generation unit (12) ...
Invention Access point, transmission station, and reception station. An access point according to an embodi...
Invention Network management device and method. A network management device according to one embodiment inc...
Invention Operation target modification system and operation target modification method. An operation targe...
Invention Access point and wireless terminal device. An access point according to an embodiment includes a ...
Invention Access point, terminal device, and communication method therefor. An access point as a first acce...
Invention Network management device, method and program. A network management device according to one embod...
Invention Neural network processing device, neural network processing method, and neural network processing...
Invention Data acceptance regulation system. The present invention facilitates avoiding or eliminating a co...
Invention Communication system. This communication system comprises: an interface that stores communication...
Invention Temperature adjustment method and drive device for wavelength conversion element. A wavelength co...
Invention Estimation device, estimation method, estimation program, learning device, and learning method. A...
Invention Optical modulator-integrated light source and method for manufacturing same. Provided are: an opt...
2022 Invention Data processing system and data processing method. A user management apparatus adds a tag in whi...
Invention Characteristic measurement apparatus, characteristic measurement method and computer program. A ...
Invention Signal transfer system and signal transfer method. According to an aspect of the present inventi...
Invention Pin display apparatus, pin display system. One aspect of the present invention is a pin display ...
Invention Tilt angle optimization apparatus, tilt angle optimization method, and program. A tilt angle opt...
Invention Server delay control device, server delay control method, and program. A server delay control de...
Invention Display control device, display control method, and displaycontrol program. A display control de...
Invention Information presentation apparatus, information presentation method, and information presentation...
Invention Device switching method and optical communication system. There is provided a device switching m...
Invention Noise control apparatus, noise controlmethod, and program. To provide a noise control apparatus ...
Invention Data transfer system, data transfer apparatus, data transfer method, and program. A data transfe...
Invention Wireless communication apparatus and startup method. There is provided a wireless communication ...
Invention Wireless communication system, communication apparatus and wireless communication method. A wire...
Invention Wireless communication system, communication apparatus, communication control apparatus, wireless...
Invention Wireless communication system, communication apparatus and wireless communication method. In a w...
Invention Device, method and program that create 3d models. An object of the present disclosure is to enab...
Invention Information processing device, information processing method, and information processing program....
Invention Processing system, processing apparatus, processing method and program. A local terminal transmi...
Invention Noise reduction apparatus, noise reduction method and computer program. According to an aspect o...
Invention Delay time measurement server, delay time measurement method and program. Provided are a delay t...
Invention Detection device, detection method, and detection program. A detection device includes processin...
2021 Invention Wireless communication system, wireless communication method, and wireless communication transmis...
Invention Migration destination determination apparatus, physical server, migration destination determinati...
Invention Optical fiber. An object of the present disclosure is to provide an optical fiber having a simpl...
Invention Sensory stimulus presentation device, sensory stimulus presentation method, and program. The sen...
Invention Reflection characteristic analysis device, reflection characteristic analysis method, and reflect...
Invention Optical transmitting apparatus, optical transmission system and optical transmission method. An ...
Invention Data collection apparatus, data collection method, and program. A data collection device accordi...
Invention Information presentation method, information presentation device, and information presentation pr...