Hisao Yamakawa

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard apparatus, electronic apparatus, and method of producing t...
- Patent number 8,491,209
- Issue date Jul 23, 2013
- Sony Corporation
- Hisao Yamakawa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Keyboard apparatus, electronic apparatus, and method of producing t...
- Publication number 20090079593
- Publication date Mar 26, 2009
- MINEBEA CO., LTD.
- Hisao Yamakawa
- G06 - COMPUTING CALCULATING COUNTING