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Kenji Umeno

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  • Nagasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Part or jig for gas carburizing furnace
    • Patent number 6,231,996
    • Issue date May 15, 2001
    • Shinto Kogyo Kabushiki Kaisha
    • Kenji Umeno
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Weld backing
    • Patent number 5,449,107
    • Issue date Sep 12, 1995
    • Kabushiki Kaisha Komatsu Seisakusho
    • Kenji Umeno
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR