Shirai Shiro

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic wave communication apparatus and method
- Patent number 6,122,312
- Issue date Sep 19, 2000
- SI Corporation
- Shirai Shiro
- G08 - SIGNALLING
Information Patent Grant
Acoustic wave communication apparatus and method
- Patent number 6,011,819
- Issue date Jan 4, 2000
- SI Corporation
- Shirai Shiro
- G08 - SIGNALLING