Suguru Douwaki

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tilt sensor using diffraction grating
- Patent number 7,577,076
- Issue date Aug 18, 2009
- Ricoh Company, Ltd.
- Tetsuya Ogata
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Tilt sensor using diffraction grating
- Publication number 20040213109
- Publication date Oct 28, 2004
- Tetsuya Ogata
- G11 - INFORMATION STORAGE