Kazuaki Hiratani

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Chuo-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polarizer protection film
- Patent number 6,552,145
- Issue date Apr 22, 2003
- Sekisui Chemical Co., Ltd.
- Yasumasa Okada
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Polarizer protection film
- Publication number 20030063237
- Publication date Apr 3, 2003
- SEKISUI CHEMICAL CO., LTD.
- Yasumasa Okada
- G02 - OPTICS