TREA

Shoichi Hasegawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for continuous leaching of ores
    • Patent number 4,324,764
    • Issue date Apr 13, 1982
    • International Resources Company, Ltd.
    • Shoichi Hasegawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process and apparatus for continuous leaching of ores
    • Patent number 4,225,563
    • Issue date Sep 30, 1980
    • International Resources Company, Ltd.
    • Shoichi Hasegawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...