Nippon Telegraph and Telephone Corporation

Japon

 
Quantité totale PI 16 634
Quantité totale incluant filiales 17 236 (+ 806 pour les filiales)
Rang # Quantité totale PI 51
Note d'activité PI 4,7/5.0    18 528
Rang # Activité PI 20
Activité incl filiales 4,6/5.0    18 947
Symbole boursier
ISIN JP3735400008
Capitalisation 12061302144480.0  (JPY)
Industrie Telecom Services
Secteur Communication Services

Brevets

Marques

5 948 0
166 0
10 520 0
0
 
Dernier brevet 2025 - Optical communication control de...
Premier brevet 1976 - Reproducer for an eraseable vide...

Filiales

28 subsidiaries with IP (738 patents, 68 trademarks)

26 subsidiaries without IP

 S'inscrire grtuitement pour accéder à la liste des filiales

Derniers inventions, produits et services

2024 Invention Sound system. A technology is provided that reduces noise heard when a user sits in a seat of an...
Invention Propagation path searching system, information processing device, propagation path searching meth...
2023 Invention Stimulus control equipment, stimulus control method, and stimulus presentation device. One embodi...
Invention Selection device, selection method, and program. Provided is a selection device in which two or m...
Invention Filter information generation device, method, and program. Provided is a filter information gener...
Invention Training device, abnormality detection device, training method, abnormality detection method, and...
Invention Apparatus, method, and program. An apparatus according to one aspect of the present disclosure, w...
Invention Adaptation device, adaptation method, and adaptation program. This adaptation device regards a cl...
Invention Filter information generation device, method, and program. This filter information generation dev...
Invention Wireless power supply system. A control server 300 according to the present disclosure comprises:...
Invention Signal processing device, signal processing method, and program. mmimm. The signal estimation uni...
Invention Estimation device, restoration device, and estimation method. The present invention provides an e...
Invention Determination device, determination method, and determination program. A determination device 1 c...
Invention Wireless power supply system. A control server 300 according to the present disclosure includes: ...
Invention Setting device, evaluation device, methods therefor, and program. According to the present invent...
Invention Prediction device. A prediction device (10) according to the present disclosure comprising: a div...
Invention Prediction device. A prediction device (10) according to the present disclosure comprises: a dete...
Invention Information processing device and information processing method. One aspect of the present invent...
Invention Optimization device, optimization method, and program. An embodiment of the present invention rel...
Invention Lightning rod for unmanned aircraft. This lightning rod for an unmanned aircraft includes: a ligh...
Invention Optimization device, optimization method, and program. One aspect of the present invention is an ...
Invention Estimation device, estimation method, and program. One aspect of the present invention is an esti...
Invention Information processing device, information processing method, and information processing program....
Invention Interrupt processing control device, interrupt processing control method, and interrupt processin...
Invention Wireless communication system. The present invention provides a wireless communication system com...
Invention Measurement system, moving vehicle, measurement method, and measurement program. A measurement sy...
Invention Estimation device and estimation program. An estimation device 10 comprises: a power consumption ...
Invention Semiconductor optical device. In the present invention, an active layer (101) is formed so as to ...
Invention Wireless communication device and wireless communication method. This wireless communication devi...
Invention Estimation device and estimation program. An estimation device 10 comprises a workload power cons...
Invention Resource allocation device, resource allocation method, and program. The present invention provid...
Invention Measurement system, mobile body, measurement method, and measurement program. A measurement syste...
Invention Wireless communication system. An embodiment of the present invention is a wireless communication...
Invention Communication management device and communication management method. A communication management d...
2022 Invention Traffic engineering device, traffic engineering method, and traffic engineering program. An acqu...
Invention Wireless apparatus and wireless communication method. A wireless apparatus according to one aspe...
Invention Wireless communication system, wireless communication method, and wireless device. According to ...
Invention Wireless communication system, relay apparatus, wireless communication method and program. In a ...
2021 Invention Cancellation apparatus, method and program. A cancellation device includes: a first AD conversio...
Invention Optical communication control device, receiver device, communication system, and control method. ...
Invention Position estimation system, controller, position estimation method, and program. An object of th...
Invention Light-emitting device. A light-emitting device includes a waveguide-type light-emitting element ...
Invention Optical node apparatus and signal superposition method. An optical node device includes a modula...
Invention Extraction device, extraction method, and extraction program. An acquisition unit (15a) acquires...
Invention Optical amplifier placement method, optical amplifier placement support apparatus and relay appar...
Invention Transmission system, apparatus, transmission method and program. An aspect of the present invent...
Invention Discussion evaluation apparatus, discussion evaluation method, and program. Provided is a dialog...
Invention Synthetic light source generation apparatus, pupil diameter variation inducing apparatus, methods...
Invention Charge and discharge management apparatus, charge and discharge management method and program. P...
Invention Optical access system and monitoring method. Provided is an optical access system that performs ...