Shigeo Urushidani

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Path management control method, path management control program, pa...
- Patent number 8,897,306
- Issue date Nov 25, 2014
- Nippon Telegraph and Telephone Corporation
- Rie Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network, optical edge router, program thereof, cut through...
- Patent number 8,532,087
- Issue date Sep 10, 2013
- Nippon Telegraph and Telephone Corporation
- Hisashi Kojima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Route switching method, server, boundary node apparatus, route swit...
- Patent number 8,422,360
- Issue date Apr 16, 2013
- Nippon Telegraph and Telephone Corporation
- Kaori Shimizu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data transfer apparatus and data transfer system
- Patent number 7,797,444
- Issue date Sep 14, 2010
- Nippon Telegraph and Telephone Corporation
- Keisuke Kabashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Self-routing switch and its routing method
- Patent number 5,022,025
- Issue date Jun 4, 1991
- Nippon Telegraph & Telephone Corporation
- Shigeo Urushidani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Self-routing switch
- Patent number 4,864,558
- Issue date Sep 5, 1989
- Nippon Telegraph & Telephone Corporation
- Hitoshi Imagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Path management control method, path management control program, pa...
- Publication number 20110292949
- Publication date Dec 1, 2011
- Inter-University Research Institute Corporation Research
- Rie Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ROUTE SWITCHING METHOD, SERVER, BOUNDARY NODE APPARATUS, ROUTE SWIT...
- Publication number 20110090785
- Publication date Apr 21, 2011
- Nippon Telegraph and Telephone Corporation
- Kaori Shimizu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data transmission device and data transmission system
- Publication number 20060168316
- Publication date Jul 27, 2006
- Nippon Telegraph and Telephone Corporation
- Keisuke Kabashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical network, optical edge router, program thereof, cut through...
- Publication number 20060126642
- Publication date Jun 15, 2006
- NIPPON TELEGRAPH AND TELEPHONE
- Hisashi Kojima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE