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Hiroshi Matsushima

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  • Honjo-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Silver powder and method for producing same
    • Patent number 7,641,817
    • Issue date Jan 5, 2010
    • Dowa Mining Co., Ltd.
    • Hiroshi Matsushima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Silver powder
    • Patent number 7,462,301
    • Issue date Dec 9, 2008
    • Dowa Mining Co., LTD
    • Hiroshi Matsushima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    SILVER POWDER AND METHOD FOR PRODUCING SAME
    • Publication number 20070181858
    • Publication date Aug 9, 2007
    • DOWA MINING CO., LTD.
    • Hiroshi Matsushima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Silver powder and method for producing same
    • Publication number 20050167640
    • Publication date Aug 4, 2005
    • DOWA MINING CO., LTD.
    • Hiroshi Matsushima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR