Keiji Watanabe

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Jyoetsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Powder of a vinylpyrrolidone polymer and a process for production t...
- Patent number 7,910,672
- Issue date Mar 22, 2011
- Nippon Shokubai Co., Ltd.
- Kazuhiro Okamura
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Powder of a Vinylpyrrolidone Polymer and a Process for Production T...
- Publication number 20080153988
- Publication date Jun 26, 2008
- Kazuhiro Okamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...