Naohide Nagatsu

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Yokosuka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for relieving failure, and packet communication device
- Patent number 8,462,617
- Issue date Jun 11, 2013
- Nippon Telegraph and Telephone Corporation
- Yukio Tsukishima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication node apparatus, communication system, and path resour...
- Patent number 7,961,644
- Issue date Jun 14, 2011
- Nippon Telegraph and Telephone Corporation
- Yoshiaki Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Node used in photonic network, and photonic network
- Patent number 7,313,328
- Issue date Dec 25, 2007
- Nippon Telegraph and Telephone Corporation
- Eiji Oki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication network
- Patent number 6,626,590
- Issue date Sep 30, 2003
- Nippon Telegraph and Telephone Corporation
- Naohide Nagatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION NODE APPARATUS, COMMUNICATION SYSTEM, AND PATH RESOUR...
- Publication number 20100208584
- Publication date Aug 19, 2010
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Yoshiaki Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for relieving failure, and packet communication device
- Publication number 20090028043
- Publication date Jan 29, 2009
- Nippon Telegraph and Telephone Corporation
- Yukio Tsukishima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Node used in photonic network, and photonic network
- Publication number 20030161633
- Publication date Aug 28, 2003
- Eiji Oki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE