TREA

Ryoji Satoh

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sintered metal parts and their production method
    • Patent number 5,259,860
    • Issue date Nov 9, 1993
    • Hitachi Powdered Metals Co., Ltd.
    • Yutaka Ikenoue
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...