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Masamichi HIRAIWA

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sensor control device
    • Patent number 8,182,664
    • Issue date May 22, 2012
    • NGK Spark Plug Co., Ltd.
    • Masamichi Hiraiwa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air fuel ratio detection apparatus
    • Patent number 7,964,073
    • Issue date Jun 21, 2011
    • NGK Spark Plug Co., Ltd.
    • Masamichi Hiraiwa
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    SENSOR CONTROL DEVICE
    • Publication number 20080277281
    • Publication date Nov 13, 2008
    • NGK SPARK PLUG CO., LTD.
    • Masamichi HIRAIWA
    • G01 - MEASURING TESTING
  • Information Patent Application

    Air fuel ratio detection apparatus
    • Publication number 20070119437
    • Publication date May 31, 2007
    • NGK SPARK PLUG CO., LTD.
    • Masamichi Hiraiwa
    • G01 - MEASURING TESTING