Yamagata Tomoyuki

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Zama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyurethane elastomer
- Patent number 5,071,887
- Issue date Dec 10, 1991
- Nippon Polyurethane Industry Co., Ltd.
- Shigeru Nakagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...