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Masaki TOKUMARU

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  • Komaki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spark plug
    • Patent number 10,418,788
    • Issue date Sep 17, 2019
    • NGK Spark Plug Co., Ltd.
    • Masaki Tokumaru
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 10,211,604
    • Issue date Feb 19, 2019
    • NGK Spark Plug Co., Ltd.
    • Masaki Tokumaru
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 10,063,037
    • Issue date Aug 28, 2018
    • NGK Spark Plug Co., Ltd.
    • Masaki Tokumaru
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SPARK PLUG
    • Publication number 20190214793
    • Publication date Jul 11, 2019
    • NGK SPARK PLUG CO., LTD.
    • Masaki TOKUMARU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20190020180
    • Publication date Jan 17, 2019
    • NGK SPARK PLUG CO., LTD.
    • Masaki TOKUMARU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170201074
    • Publication date Jul 13, 2017
    • NGK SPARK PLUG CO., LTD.
    • Masaki TOKUMARU
    • H01 - BASIC ELECTRIC ELEMENTS