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Michitaka YAMADA

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  • Tajimi-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spark plug
    • Patent number 10,586,627
    • Issue date Mar 10, 2020
    • NGK Spark Plug Co., Ltd.
    • Haruki Yoshida
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spark plug
    • Patent number 10,348,061
    • Issue date Jul 9, 2019
    • NGK Spark Plug Co., Ltd.
    • Hideto Yamada
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Spark plug including an insulator with a front end portion having f...
    • Patent number 10,305,260
    • Issue date May 28, 2019
    • NGK Spark Plug Co., Ltd.
    • Haruki Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SPARK PLUG
    • Publication number 20190020181
    • Publication date Jan 17, 2019
    • NGK SPARK PLUG CO., LTD.
    • Haruki YOSHIDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20180374601
    • Publication date Dec 27, 2018
    • NGK SPARK PLUG CO., LTD.
    • Haruki YOSHIDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20180375299
    • Publication date Dec 27, 2018
    • NGK SPARK PLUG CO., LTD.
    • Hideto YAMADA
    • B82 - NANO-TECHNOLOGY