Setsuko Yamamoto

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dye containing polarizing film
- Patent number 6,235,064
- Issue date May 22, 2001
- Sumitomo Chemical Company, Limited
- Kazuya Ogino
- G02 - OPTICS
Information Patent Grant
Azo compound and a polarizing film containing the same
- Patent number 5,700,296
- Issue date Dec 23, 1997
- Sumitomo Chemical Company, Limited
- Kazuya Ogino
- B32 - LAYERED PRODUCTS
Information Patent Grant
Dye containing polarizing film
- Patent number 5,609,796
- Issue date Mar 11, 1997
- Sumitomo Chemical Company, Limited
- Setsuko Yamamoto
- G02 - OPTICS