TREA

Kazuyoshi Yamaguchi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum heat treating method and apparatus therefor
    • Patent number 7,357,843
    • Issue date Apr 15, 2008
    • Koyo Thermo Systems Co., Ltd.
    • Kazuyoshi Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Vacuum carbo-nitriding method
    • Patent number 7,112,248
    • Issue date Sep 26, 2006
    • Koyo Thermo Systems Co., Ltd.
    • Kazuyoshi Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

  • Information Patent Application

    Vacuum carbo-nitriding method
    • Publication number 20040250921
    • Publication date Dec 16, 2004
    • Kazuyoshi Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Method and apparatus for vacuum heat treatment
    • Publication number 20040187966
    • Publication date Sep 30, 2004
    • Kazuyoshi Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...