Kanji Tatsumi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Repeater and optical communication system
- Patent number 7,580,641
- Issue date Aug 25, 2009
- Yokogawa Electric Corporation
- Hiroshi Shimizu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Repeater and optical communication system
- Publication number 20070047956
- Publication date Mar 1, 2007
- YOKOGAWA ELECTRIC CORPORATION
- Hiroshi Shimizu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE