Nippon Telegraph and Telephone Corporation

Japon

 
Quantité totale PI 7 250
Quantité totale incluant filiales 7 739 (+ 714 pour les filiales)
Rang # Quantité totale PI 123
Note d'activité PI 4,5/5.0    9 037
Rang # Activité PI 55
Activité incl filiales 4,3/5.0    9 340
Symbole boursier
ISIN JP3735400008
Capitalisation 12576143542560.0  (JPY)
Industrie Telecom Services
Secteur Communication Services

Brevets

Marques

2 184 0
383 0
4 683 0
0
 
Dernier brevet 2021 - Nonverbal information generation...
Premier brevet 1976 - Reproducer for an eraseable vide...

Filiales

26 subsidiaries with IP (608 patents, 106 trademarks)

26 subsidiaries without IP

 S'inscrire grtuitement pour accéder à la liste des filiales

Derniers inventions, produits et services

2020 Invention Amplification circuit. An amplification circuit (1) according to the present invention is provide...
Invention Processing device, processing method and processing program. This processing device 1 comprises: ...
Invention Amplification circuit. An amplification circuit (1) according to the present invention comprises:...
Invention Labeling error detection device, labeling error detection method, and program. An acoustic featur...
Invention Measurement system. The present invention provides a measurement system for measuring the moving ...
Invention Data update method, data update device, and program. A data update method that replaces, without ...
Invention Identification device, identification method, and identification program. This identification dev...
Invention Masking device, masking method, and masking program. A masking device according to the present in...
Invention Radar apparatus, object detection method, and object detection program. This radar apparatus comp...
Invention Optical-amplification-estimation method, optical-amplification-estimation device, and computer pr...
Invention Wireless communication device and wireless communication method. A wireless communication device ...
Invention Protocol identification device, protocol identification method, and program. A protocol identific...
Invention Communication device, communication system, communication method, and program. A communication de...
Invention Mood prediction method, mood prediction device, and program. According to the present invention, ...
Invention Interpolation processing device, interpolation processing method, and interpolation processing pr...
Invention Processing device, processing method, and processing program. A processing device 1 comprises: an...
Invention Optical reception device and clock synchronization method. This optical reception device comprise...
Invention Optical wireless communication device and optical wireless communication method. One embodiment o...
Invention Communication system, communication path monitoring method, communication device, and program. Th...
Invention Carbon thin film electrode and method for manufacturing same. A carbon thin film electrode (100) ...
Invention Traffic monitoring device, traffic monitoring method, and traffic monitoring program. This traffi...
Invention Packet capture device and packet capture method. This packet capture device (1) comprises a hardw...
Invention Particle size distribution measurement method and device. First, in step (S101), soil to be measu...
Invention Table entry count measuring device, method, and program. A control device (15), wherein a new flo...
Invention Connection number measurement device, connection state detection device, connection state detecti...
Invention Tunable laser diode. A reflective phase regulator (20) for use in this TLD of an oscillation wave...
Invention Power transaction control device, power transaction control method, and program. This power trans...
Invention Transient fluctuation detection device, transient fluctuation detection method, and program. A tr...
Invention Information processing system, information processing method, and program. An information process...
Invention Utility pole rotation device and positional control method. In order to address the problem of th...
Invention Strained quantum well structure, optical semiconductor device, and semiconductor laser. This stra...
Invention Wireless communication system, communication device, wireless communication method, and communica...
2019 Invention Optical connection structure. An optical connection structure includes a PLC that is an optical ...
Invention Wavelength checker. A wavelength checker includes an optical waveguide chip. A known arrayed-wav...
Invention Optical interconnect structure. An optical connection structure includes a first focus lens arra...
Invention Load leveling device, load leveling method, and load leveling program. Load leveling between hos...
Invention Testing assistance device, testing assistance method, and testing assistance program. An inspect...
Invention Center line simplification device, network data generation system and program. Centerlines for g...
Invention Information processing apparatus, log analysis method and program. An information processing app...
Invention Distributed processing system and distributed processing method. A first distributed processing ...
Invention Ground intersection estimating method, ground intersection estimating device, and program. An ob...
Invention Difference detection apparatus and difference detection program. A difference detection device i...
Invention Wireless communication system, aggregation device, interference source air time acquisition metho...
Invention Crosstalk estimation system. A crosstalk estimation system includes: a light source unit that ge...
Invention Resource reservation management device and resource reservation management method. [Problem] Whe...
Invention Secure aggregate median system, secure computation apparatus, secure aggregate median method, and...
Invention Nonverbal information generation apparatus, nonverbal information generation model learning appar...
2018 Invention Information processing device, information processing method, and program. An information proces...
Invention Speech intelligibility calculating method, speech intelligibility calculating apparatus, and spee...