TREA

Takao Ooishi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Separation method for zinc sulfide
    • Patent number 7,964,165
    • Issue date Jun 21, 2011
    • Sumitomo Metal Mining Co., Ltd.
    • Osamu Nakai
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Separation method for zinc sulfide
    • Publication number 20100034716
    • Publication date Feb 11, 2010
    • Sumitomo Metal Mining Co., Ltd.
    • Osamu Nakai
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...