TREA

Susumu Yamamoto

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Patents Grantslast 30 patents

  • Information Patent Grant

    Colored zinc coating
    • Patent number 5,160,552
    • Issue date Nov 3, 1992
    • Nippon Mining Co., Ltd
    • Masatoshi Tomita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Colored zinc coating
    • Patent number 5,141,782
    • Issue date Aug 25, 1992
    • Nippon Mining Co., Ltd
    • Masatoshi Tomita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Colored zinc coating
    • Patent number 5,022,937
    • Issue date Jun 11, 1991
    • Nippon Mining Co., Ltd
    • Masatoshi Tomita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...