Toshiya Sakuma

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical device with barrier layer, optical system, and projector ap...
- Patent number 6,771,420
- Issue date Aug 3, 2004
- Fuji Photo Optical Co., Ltd.
- Naoki Ozawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical device with barrier layer, optical system, and projector ap...
- Publication number 20030137738
- Publication date Jul 24, 2003
- Fuji Photo Optical Co., Ltd.
- Naoki Ozawa
- G02 - OPTICS