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Kazuyoshi Usami

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealing material and method
    • Patent number 5,496,868
    • Issue date Mar 5, 1996
    • Bridgestone Corporation
    • Hajime Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents