TREA

Toshio Shimizu

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  • Tokyo, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Case-hardening method for carbon steel
    • Patent number 4,007,302
    • Issue date Feb 8, 1977
    • Kabushiki Kaisha Daini Seikosha
    • Hiroshi Hashimoto
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Case-hardening method for carbon steel
    • Patent number 3,988,515
    • Issue date Oct 26, 1976
    • Kabushiki Kaisha Seikosha
    • Hiroshi Hashimoto
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...