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Kenichi Nishikawa

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  • Bisai-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing spark plug
    • Patent number 7,081,274
    • Issue date Jul 25, 2006
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 6,831,395
    • Issue date Dec 14, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug with glaze and marking
    • Patent number 6,831,396
    • Issue date Dec 14, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Glaze layer for a spark plug
    • Patent number 6,822,378
    • Issue date Nov 23, 2004
    • NGK Spark Plug., Ltd.
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Spark plug
    • Patent number 6,771,009
    • Issue date Aug 3, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Spark plug
    • Patent number 6,765,340
    • Issue date Jul 20, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for producing spark plug
    • Patent number 6,752,677
    • Issue date Jun 22, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Spark plug
    • Patent number 6,744,188
    • Issue date Jun 1, 2004
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug having a reduced lead glaze layer on the insulator thereof
    • Patent number 6,590,318
    • Issue date Jul 8, 2003
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Spark plug
    • Patent number 6,590,317
    • Issue date Jul 8, 2003
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 6,566,792
    • Issue date May 20, 2003
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Manufacturing method of resistor-incorporated spark plug
    • Patent number 6,334,800
    • Issue date Jan 1, 2002
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug having a metal layer in a terminal metal piece
    • Patent number 6,188,166
    • Issue date Feb 13, 2001
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Resistor-incorporated spark plug and manufacturing method of resist...
    • Patent number 6,160,342
    • Issue date Dec 12, 2000
    • NGK Spark Plug Co., Ltd.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 5,859,491
    • Issue date Jan 12, 1999
    • NGK Spark Plug Co., Ltd
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of making a spark plug insulator
    • Patent number 5,565,157
    • Issue date Oct 15, 1996
    • NGK Spark Plug Co., Ltd.
    • Makoto Sugimoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug insulator for use in internal combustion engine
    • Patent number 5,508,582
    • Issue date Apr 16, 1996
    • NGK Spark Plug Co., Ltd.
    • Makoto Sugimoto
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SCREEN MASK, METHOD FOR PRINTING CONDUCTIVE BONDING MATERIAL, MOUNT...
    • Publication number 20090145650
    • Publication date Jun 11, 2009
    • Kenichi NISHIKAWA
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Spark plug
    • Publication number 20030127959
    • Publication date Jul 10, 2003
    • NGK SPARK PLUG CO., LTD.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20030122462
    • Publication date Jul 3, 2003
    • NGK SPARK PLUG CO., LTD.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Method for producing spark plug
    • Publication number 20030082982
    • Publication date May 1, 2003
    • NGK SPARK PLUG CO., LTD.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Method for producing spark plug
    • Publication number 20030051341
    • Publication date Mar 20, 2003
    • NGK SPARK PLUG CO., LTD.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20020067110
    • Publication date Jun 6, 2002
    • NGK SPARK PLUG CO., LTD.
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20020041137
    • Publication date Apr 11, 2002
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    Spark plug
    • Publication number 20020041138
    • Publication date Apr 11, 2002
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20020036451
    • Publication date Mar 28, 2002
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20020036450
    • Publication date Mar 28, 2002
    • Kenichi Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Spark plug
    • Publication number 20020033659
    • Publication date Mar 21, 2002
    • Kenichi Nishikawa
    • C03 - GLASS MINERAL OR SLAG WOOL