Katsumi Oka

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Chuo-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rubber composition
- Patent number 6,531,546
- Issue date Mar 11, 2003
- JSR Corporation
- Katsumi Oka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Rubber composition
- Publication number 20020058759
- Publication date May 16, 2002
- JSR Corporation
- Katsumi Oka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...