TREA

Nobuyasu Dohi

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tin, lead, or tin-lead alloy plating bath
    • Patent number 4,673,470
    • Issue date Jun 16, 1987
    • Obata; Keigo
    • Keigo Obata
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Tin-lead alloy plating bath
    • Patent number 4,555,314
    • Issue date Nov 26, 1985
    • Obata, Dohi, Daiwa Fine Chemicals Co. Ltd.
    • Keigo Obata
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Tin, lead, and tin-lead alloy plating baths
    • Patent number 4,459,185
    • Issue date Jul 10, 1984
    • Obata, Doni, Daiwa, Fine Chemicals Co., Ltd.
    • Keigo Obata
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Method of bright electroplating of tin-lead alloy
    • Patent number 4,132,610
    • Issue date Jan 2, 1979
    • Hyogo Prefectural Government
    • Nobuyasu Dohi
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR