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Takumi Ohhara

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  • Fukushima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing alkaline battery
    • Patent number 7,314,492
    • Issue date Jan 1, 2008
    • Sony Corporation
    • Takumi Ohhara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Alkaline battery
    • Patent number 6,794,082
    • Issue date Sep 21, 2004
    • Sony Corporation
    • Katsumi Mori
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Method for manufacturing alkaline battery
    • Publication number 20040221446
    • Publication date Nov 11, 2004
    • Sony Corporation
    • Takumi Ohhara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Alkaline battery
    • Publication number 20020127469
    • Publication date Sep 12, 2002
    • Katsumi Mori
    • H01 - BASIC ELECTRIC ELEMENTS