Kiyokazu Imai

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Nagaoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vinyl acetylsalicylate-vinyl alcohol based copolymer
- Patent number 5,422,395
- Issue date Jun 6, 1995
- Shin-Etsu Chemical Co., Ltd.
- Makoto Ooura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Novel cellulose derivative, process for preparing the same and sulf...
- Patent number 4,694,077
- Issue date Sep 15, 1987
- Shin-Etsu Chemical Co., Ltd.
- Kiyokazu Imai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...