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Kiyoshi Nakama

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  • Hiratsuka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ag-Cu alloy for a sliding contact
    • Patent number 5,972,131
    • Issue date Oct 26, 1999
    • Tanaka Kikinzoku Kogyo K.K.
    • Takao Asada
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Cobalt-containing precious metal material for decoration
    • Patent number 5,037,496
    • Issue date Aug 6, 1991
    • Tanaka Kikinzoku Kogyo K.K.
    • Kiyoshi Nakama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...