Shinichi Umeya

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Sakai-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polycarbonate polyurethane resin composition
- Patent number 5,859,122
- Issue date Jan 12, 1999
- Nicca Chemical Co., Ltd.
- Shinichi Umeya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...