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Kotaro NAKAJIMA

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chip-scattering prevention cover
    • Patent number 11,338,403
    • Issue date May 24, 2022
    • KYOKUTOH CO., LTD.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spot welding electrode housing apparatus
    • Patent number 11,117,211
    • Issue date Sep 14, 2021
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electrode tip removal device and hammer
    • Patent number 10,894,298
    • Issue date Jan 19, 2021
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spot welding electrode housing apparatus
    • Patent number 10,137,524
    • Issue date Nov 27, 2018
    • KYOKUTOH CO., LTD.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for grinding electrode tip
    • Patent number 10,016,835
    • Issue date Jul 10, 2018
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tip dresser
    • Patent number 9,707,639
    • Issue date Jul 18, 2017
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary work device
    • Patent number 9,505,080
    • Issue date Nov 29, 2016
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electrode inspection apparatus for spot welding
    • Patent number 9,497,360
    • Issue date Nov 15, 2016
    • Keylex Corporation
    • Kenji Sogo
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spot welding electrode housing apparatus
    • Patent number 9,321,124
    • Issue date Apr 26, 2016
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tip dresser
    • Patent number 8,899,888
    • Issue date Dec 2, 2014
    • Kyokutoh Co., Ltd.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CHIP-SCATTERING PREVENTION COVER
    • Publication number 20200238464
    • Publication date Jul 30, 2020
    • KYOKUTOH CO., LTD.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CHIP COLLECTING DEVICE
    • Publication number 20200061734
    • Publication date Feb 27, 2020
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPOT WELDING ELECTRODE HOUSING APPARATUS
    • Publication number 20190091792
    • Publication date Mar 28, 2019
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ELECTRODE TIP REMOVAL DEVICE AND HAMMER
    • Publication number 20180369949
    • Publication date Dec 27, 2018
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPOT WELDING ELECTRODE HOUSING APPARATUS
    • Publication number 20180326528
    • Publication date Nov 15, 2018
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ELECTRODE TIP REMOVER
    • Publication number 20170282284
    • Publication date Oct 5, 2017
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TIP DRESSER
    • Publication number 20160279733
    • Publication date Sep 29, 2016
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPOT WELDING ELECTRODE HOUSING APPARATUS
    • Publication number 20150298246
    • Publication date Oct 22, 2015
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ROTARY WORK DEVICE
    • Publication number 20150217397
    • Publication date Aug 6, 2015
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    METHOD FOR GRINDING ELECTRODE TIP
    • Publication number 20150044945
    • Publication date Feb 12, 2015
    • Kyokutoh Co., Ltd.
    • Kotaro NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ELECTRODE INSPECTION APPARATUS FOR SPOT WELDING
    • Publication number 20140333756
    • Publication date Nov 13, 2014
    • Kenji SOGO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TIP DRESSER
    • Publication number 20140064863
    • Publication date Mar 6, 2014
    • KYOKUTOH CO., LTD.
    • Kotaro Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR