Naomi Yokoyama

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ring network and method for path interchange therein
- Patent number 7,079,483
- Issue date Jul 18, 2006
- Fujitsu Limited
- Hirotaka Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Facsimile signal relay method and apparatus therefor
- Patent number 5,754,310
- Issue date May 19, 1998
- Fujitsu Limited
- Kazuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Ring network and method for path interchange therein
- Publication number 20020146020
- Publication date Oct 10, 2002
- Hirotaka Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE