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Masaaki KUMAGAI

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  • Nishikasugai-gun, Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spark plug
    • Patent number 9,484,718
    • Issue date Nov 1, 2016
    • NGK Spark Plug Co., Ltd.
    • Haruki Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SPARK PLUG
    • Publication number 20160204580
    • Publication date Jul 14, 2016
    • NGK Spark Plug Co., Ltd.
    • Haruki YOSHIDA
    • H01 - BASIC ELECTRIC ELEMENTS