Nippon Telegraph and Telephone Corporation

Japan

Create a watch for Nippon Telegraph and Telephone Corporation
Total IP 16,263
Total IP incl. subs 16,830 (+ 750 for subs)
Total IP Rank # 51
IP Activity Score 4.6/5.0    14,209
IP Activity Rank # 34
IP AS incl. subs 4.5/5.0    14,537
Stock Symbol
ISIN JP3735400008
Market Cap. 12061302144480.0  (JPY)
Industry Telecom Services
Sector Communication Services

Patents

Trademarks

5,213 0
159 0
10,891 0
0
 
Last Patent 2026 - Configuration input apparatus, c...
First Patent 1976 - Reproducer for an eraseable vide...

Subsidiaries

26 subsidiaries with IP (694 patents, 56 trademarks)

28 subsidiaries without IP

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Latest Inventions, Goods, Services

2025 Invention Processing device, processing method, and program. A processing device 1 comprises a calculation ...
2023 Invention Planar lightwave circuit lattice filter and optical transmitter module using thereof. An embodim...
Invention Soft decision apparatus, soft decision method and program. Provided is a soft decision device th...
2022 Invention Obstacle proximity detection device, obstacle proximity detection method, and obstacle proximity ...
Invention Configuration input apparatus, configuration input method, and configuration input program. A ce...
Invention Extracting device, extracting method and extracting program. In an extraction device (10), a sto...
Invention Gain equalizer. A gain equalizer using a lattice optical circuit with a smaller polarization-dep...
Invention Access point and terminal. An access point includes an address management part, a transmission p...
Invention Space rendering apparatus and space rendering method. A space production apparatus according to ...
Invention Device for monitoring. Provided is a device for monitoring that realizes monitoring of an influe...
Invention Semiconductor optical device. The semiconductor optical device first includes a first cladding l...
Invention Remote optical path switching node and remove optical path switching method. A remote optical pa...
Invention Communication system and normalcy judgment method. A communication system includes an instructio...
Invention Signal processing apparatus, signal processing method and program. A signal processing device in...
Invention Pipe clamping appliance and pipe clamping method. A pipe clamping tool (10) includes a pair of f...
Invention Aerial image display system, display control device, display control method and program. One asp...
Invention Aerial image display system and display control device. In one aspect of the present invention, ...
Invention Optical path testing device and optical path testing method. An optical path testing device and ...
Invention Optical cross-connect device. An optical cross-connect includes: first to fourth optical switche...
Invention Differential mode delay measuring device and method. An object is to provide a differential mode...
Invention Optical connector. An optical connector includes an aligning mechanism including an inlet, into ...
Invention Optical monitor device, and optical power and wavelength measurement method. An object of the pr...
Invention Optical monitor device and optical intensity measurement method. An object of the present disclo...
Invention Sound propagation characteristics correction apparatus, sound propagation characteristics correct...
Invention Video generation device, video generation method, and video generation program. The video genera...
Invention Resource determination device, method, and program. According to a resource determination device...
Invention Accelerator state control device, accelerator state control system, accelerator state control met...
Invention Conversion apparatus, conversion method, and program. A conversion device includes a character c...
Invention Image caption generation model learning apparatus, image caption generation apparatus, image capt...
Invention Model learning apparatus, satisfaction estimation apparatus, model learning method, satisfaction ...
Invention Stripping device, stripping method, and program. A peeling device (1) includes an electrolyte sh...
Invention Similarity calculation device, similarity calculation method and similarity calculation program. ...
Invention Phase adjustment circuit. An embodiment is a phase adjustment circuit includes a sine wave outpu...
Invention Stereo image generating apparatus, stereo image generatingmethod, and program. A stereo image ge...
Invention Optical transmission apparatus and optical transmission method. An optical transmission device w...
Invention Scheduling method and control device. A control device (10) according to the present disclosure ...
Invention Calculation device, network device, calculation method and program. A calculation apparatus (30)...
Invention Optical coupling part and optical switch. An objective of the present disclosure is to provide a...
Invention Position information calculation apparatus, position information calculation method, and program....
Invention Audio signal output apparatus. An acoustic signal output device includes a driver unit and a hou...
Invention Question recommendation apparatus, question recommendation method, and program. Provided is a te...
Invention Risk evaluation device, risk evaluation method, and risk evaluation program. A risk evaluation d...
Invention Update method of container infrastructure cluster, update system of container infrastructure clus...
Invention Learning apparatus, information providing apparatus, learning method, information providing metho...
Invention Video processing system and video processing method. An object of the present disclosure is to r...
Invention Optical wireless communication system, optical wireless communication apparatus and optical wirel...
Invention Secondary battery. The secondary battery includes a positive electrode containing indigo, a nega...
Invention Optical receiver. Provided is an optical receiver which can be manufactured by a simple mounting...
Invention Evaluation method, device and program for semiconductor laser. A semiconductor laser evaluation ...