Naoto Matsuzawa

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Kawaguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wireless position measurement method and wireless position measurem...
- Patent number 7,266,098
- Issue date Sep 4, 2007
- Hitachi, Ltd.
- Atsushi Ogino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Position detection method, position detection system, and position...
- Patent number 7,212,830
- Issue date May 1, 2007
- Hitachi, Ltd.
- Tsuyoshi Tamaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Position detection method, position detection system, and position...
- Publication number 20050266860
- Publication date Dec 1, 2005
- Hitachi, Ltd.
- Tsuyoshi Tamaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless position measurement method and wireless position measurem...
- Publication number 20050078626
- Publication date Apr 14, 2005
- Hitachi, Ltd.
- Atsushi Ogino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE