Yasuhiro Fujimura

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Iwate, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical element and optical device
- Patent number 7,894,133
- Issue date Feb 22, 2011
- Ricoh Company, Ltd.
- Hideaki Hirai
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT AND OPTICAL DEVICE
- Publication number 20080106789
- Publication date May 8, 2008
- Hideaki Hirai
- G02 - OPTICS