Ryoichi Shimada

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Line quality characteristic evaluation system
- Patent number 7,177,599
- Issue date Feb 13, 2007
- Fujitsu Limited
- Isao Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interference measurement and evaluation system
- Patent number 7,107,011
- Issue date Sep 12, 2006
- Fujitsu Limited
- Isao Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Line quality characteristic evaluation system
- Publication number 20040179484
- Publication date Sep 16, 2004
- Isao Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Interference measurement and evaluation system
- Publication number 20040171351
- Publication date Sep 2, 2004
- Isao Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE