TREA

Jiro Koarai

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Material for steel wool
    • Patent number 4,432,792
    • Issue date Feb 21, 1984
    • Kabushiki Kaisha Kobe Seiko Sho
    • Heijiro Kawakami
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Steel for machine construction having excellent cold forgeability a...
    • Patent number 4,431,445
    • Issue date Feb 14, 1984
    • Kabushiki Kaisha Kobe Seiko Sho
    • Sadayoshi Furusawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...