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Kuniharu TANAKA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Spark plug
    • Patent number 11,183,819
    • Issue date Nov 23, 2021
    • NGK Spark Plug Co., Ltd.
    • Yutaka Yokoyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 10,879,675
    • Issue date Dec 29, 2020
    • NGK Spark Plug Co., Ltd.
    • Haruki Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug insulator production method, insulator, molding die
    • Patent number 10,751,923
    • Issue date Aug 25, 2020
    • NGK Spark Plug Co., Ltd.
    • Hirokazu Kurono
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • 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 10,424,901
    • Issue date Sep 24, 2019
    • NGK Spark Plug Co., Ltd.
    • Jumpei Isasa
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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
    • Patent number 10,340,667
    • Issue date Jul 2, 2019
    • NGK Spark Plug Co., Ltd.
    • Toshinori Takeichi
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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
  • Information Patent Grant

    Spark plug including a magnetic substance and a conductor disposed...
    • Patent number 10,277,012
    • Issue date Apr 30, 2019
    • NGK Spark Plug Co., Ltd.
    • Kazuhiro Kurosawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 10,270,228
    • Issue date Apr 23, 2019
    • NGK Spark Plug Co., Ltd.
    • Kazuhiro Kurosawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Spark plug
    • Patent number 10,193,311
    • Issue date Jan 29, 2019
    • NGK Spark Plug Co., Ltd.
    • Yutaka Yokoyama
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spark plug having the thickness of a magnetic member without excess...
    • Patent number 10,153,622
    • Issue date Dec 11, 2018
    • NGK Spark Plug Co., Ltd.
    • Hironori Uegaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 10,090,646
    • Issue date Oct 2, 2018
    • NGK Spark Plug Co., Ltd.
    • Katsuya Takaoka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug having a resistor element
    • Patent number 9,997,894
    • Issue date Jun 12, 2018
    • NGK Spark Plug Co., Ltd.
    • Hironori Uegaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,912,125
    • Issue date Mar 6, 2018
    • NGK Spark Plug Co., Ltd.
    • Haruki Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,755,404
    • Issue date Sep 5, 2017
    • NGK Spark Plug Co., Ltd.
    • Jumpei Isasa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,653,888
    • Issue date May 16, 2017
    • NGK Spark Plug Co., Ltd.
    • Yutaka Yokoyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,595,814
    • Issue date Mar 14, 2017
    • NGK Spark Plug Co., Ltd.
    • Takashi Kasashima
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,590,395
    • Issue date Mar 7, 2017
    • NGK Spark Plug Co., Ltd.
    • Katsuya Takaoka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spark plug
    • Patent number 9,385,511
    • Issue date Jul 5, 2016
    • NGK Spark Plug Co., Ltd.
    • Hiroki Takeuchi
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spark plug
    • Patent number 9,373,940
    • Issue date Jun 21, 2016
    • NGK Spark Plug Co., Ltd.
    • Katsuya Takaoka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas sensor element and gas sensor
    • Patent number 9,291,525
    • Issue date Mar 22, 2016
    • NGK Spark Plug Co., Ltd.
    • Shigehiro Otsuka
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Spark plug
    • Patent number 9,281,662
    • Issue date Mar 8, 2016
    • NGK Spark Plug Co., Ltd.
    • Katsuya Takaoka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas sensor element, and gas sensor
    • Patent number 9,234,870
    • Issue date Jan 12, 2016
    • NGK Spark Plug Co., Ltd.
    • Shigehiro Otsuka
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Insulator for spark plug and spark plug
    • Patent number 9,160,145
    • Issue date Oct 13, 2015
    • NGK Spark Plug Co., Ltd.
    • Katsuya Takaoka
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Gas sensor element and gas sensor
    • Patent number 9,080,964
    • Issue date Jul 14, 2015
    • NGK Spark Plug Co., Ltd.
    • Sigehiro Otsuka
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor element and gas sensor
    • Patent number 8,992,752
    • Issue date Mar 31, 2015
    • NGK Spark Plug Co., Ltd.
    • Masaki Onkawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Sintered body and cutting tool
    • Patent number 8,889,577
    • Issue date Nov 18, 2014
    • NGK Spark Plug Co., Ltd.
    • Jun Moteki
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spark plug and process for producing spark plug
    • Patent number 8,564,184
    • Issue date Oct 22, 2013
    • NGK Spark Plug Co., Ltd.
    • Hirokazu Kurono
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spark plug and method for manufacturing spark plug
    • Patent number 8,390,183
    • Issue date Mar 5, 2013
    • NGK Spark Plug Co., Ltd.
    • Hirokazu Kurono
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    KITCHEN KNIFE AND BLADE
    • Publication number 20220088806
    • Publication date Mar 24, 2022
    • NGK Spark Plug Co., Ltd.
    • Yusuke KATSU
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    SPARK PLUG
    • Publication number 20200112146
    • Publication date Apr 9, 2020
    • NGK SPARK PLUG CO., LTD.
    • Yutaka Yokoyama
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    SPARK PLUG
    • Publication number 20190131776
    • Publication date May 2, 2019
    • NGK Spark Plug Co., Ltd.
    • Jumpei ISASA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20190115729
    • Publication date Apr 18, 2019
    • NGK SPARK PLUG CO., LTD.
    • Toshinori TAKEICHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20190067914
    • Publication date Feb 28, 2019
    • NGK SPARK PLUG CO., LTD.
    • Kazuhiro KUROSAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20190067915
    • Publication date Feb 28, 2019
    • NGK SPARK PLUG CO., LTD.
    • Kazuhiro KUROSAWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • 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 20180375298
    • Publication date Dec 27, 2018
    • NGK Spark Plug Co., Ltd.
    • Kazuhiro KUROSAWA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

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

    SPARK PLUG
    • Publication number 20180358784
    • Publication date Dec 13, 2018
    • NGK SPARK PLUG CO., LTD.
    • Hironori UEGAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20180166861
    • Publication date Jun 14, 2018
    • NGK Spark Plug Co., Ltd.
    • Kazuhiro KUROSAWA
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    SPARK PLUG
    • Publication number 20180048126
    • Publication date Feb 15, 2018
    • NGK Spark Plug Co., Ltd.
    • Yutaka YOKOYAMA
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170353013
    • Publication date Dec 7, 2017
    • NGK SPARK PLUG CO., LTD.
    • Haruki YOSHIDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG INSULATOR PRODUCTION METHOD, INSULATOR, MOLDING DIE
    • Publication number 20170326765
    • Publication date Nov 16, 2017
    • NGK Spark Plug Co., Ltd.
    • Hirokazu Kurono
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170288374
    • Publication date Oct 5, 2017
    • NGK SPARK PLUG CO., LTD.
    • Hironori UEGAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170214219
    • Publication date Jul 27, 2017
    • NGK Spark Plug Co., Ltd.
    • Katsuya TAKAOKA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170093132
    • Publication date Mar 30, 2017
    • NGK Spark Plug Co., Ltd.
    • Jumpei ISASA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170093134
    • Publication date Mar 30, 2017
    • NGK SPARK PLUG CO., LTD.
    • Yutaka YOKOYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20170093133
    • Publication date Mar 30, 2017
    • NGK SPARK PLUG CO., LTD.
    • Haruki YOSHIDA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20160329687
    • Publication date Nov 10, 2016
    • NGK SPARK PLUG CO., LTD.
    • Takashi KASASHIMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20160322789
    • Publication date Nov 3, 2016
    • NGK Spark Plug Co., Ltd.
    • Katsuya TAKAOKA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20150349498
    • Publication date Dec 3, 2015
    • NGK SPARK PLUG CO., LTD.
    • Katsuya TAKAOKA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20150325982
    • Publication date Nov 12, 2015
    • NGK SPARK PLUG CO., LTD.
    • Katsuya TAKAOKA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPARK PLUG
    • Publication number 20150207300
    • Publication date Jul 23, 2015
    • NGK Spark Plug Co., Ltd.
    • Hiroki Takeuchi
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    INSULATOR FOR SPARK PLUG AND SPARK PLUG
    • Publication number 20140336035
    • Publication date Nov 13, 2014
    • NGK Spark Plug Co., Ltd.
    • Katsuya TAKAOKA
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    GAS SENSOR ELEMENT, AND GAS SENSOR
    • Publication number 20140291150
    • Publication date Oct 2, 2014
    • NGK Spark Plug Co. Ltd
    • Shigehiro Otsuka
    • G01 - MEASURING TESTING
  • Information Patent Application

    GAS SENSOR ELEMENT AND GAS SENSOR
    • Publication number 20140130572
    • Publication date May 15, 2014
    • Shigehiro OTSUKA
    • G01 - MEASURING TESTING
  • Information Patent Application

    SINTERED BODY AND CUTTING TOOL
    • Publication number 20130236259
    • Publication date Sep 12, 2013
    • NGK Spark Plug Co., Ltd.
    • Jun Moteki
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    GAS SENSOR ELEMENT AND GAS SENSOR
    • Publication number 20130104625
    • Publication date May 2, 2013
    • NGK SPARK PLUG CO., LTD.
    • Sigehiro OTSUKA
    • G01 - MEASURING TESTING