TREA

Susumu Otsuka

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for antirust treatment of steel stocks
    • Patent number 4,354,881
    • Issue date Oct 19, 1982
    • Nippon Steel Corporation
    • Keiichi Tanikawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Surface treatment of a tin-plate
    • Patent number 4,104,419
    • Issue date Aug 1, 1978
    • Nippon Steel Corporation
    • Keiichi Tanikawa
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR