Koji Tsuru

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Iruma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for measuring resonance frequency of electric...
- Patent number 6,288,530
- Issue date Sep 11, 2001
- Nippon and Telegraph and Telephone Corp.
- Koji Tsuru
- G01 - MEASURING TESTING
Information Patent Grant
IC card
- Patent number 6,173,900
- Issue date Jan 16, 2001
- Hitachi, Ltd.
- Hiroshi Yoshigi
- G06 - COMPUTING CALCULATING COUNTING