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Yukichi Watanabe

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vibration-damping composite sheet steel
    • Patent number 5,093,204
    • Issue date Mar 3, 1992
    • Nippon Kokan Kabushiki Kaisha
    • Yukichi Watanabe
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Vibration-damping composite metal plate
    • Patent number 4,740,427
    • Issue date Apr 26, 1988
    • Nippon Kokan Kabushiki Kaisha
    • Masahide Ochiumi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...