Katsuya Takemasa

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Preform for plastic optical material, production method thereof, op...
- Patent number 7,590,319
- Issue date Sep 15, 2009
- FUJIFILM Corporation
- Yasuyuki Mizushima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Preform for plastic optical material, production method thereof, op...
- Publication number 20050175290
- Publication date Aug 11, 2005
- Fuji Photo Film Co., Ltd.
- Yasuyuki Mizushima
- G02 - OPTICS