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Hironori Sakai

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically powered tool
    • Patent number 11,986,924
    • Issue date May 21, 2024
    • KOKI HOLDINGS CO., LTD.
    • Ken Miyazawa
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Electric tool
    • Patent number 11,958,158
    • Issue date Apr 16, 2024
    • KOKI HOLDINGS CO., LTD.
    • Yuuki Takeda
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Rotary tool
    • Patent number 11,745,301
    • Issue date Sep 5, 2023
    • KOKI HOLDINGS CO., LTD.
    • Hironori Sakai
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Electric tool
    • Patent number 11,571,781
    • Issue date Feb 7, 2023
    • KOKI HOLDINGS CO., LTD.
    • Yuuki Takeda
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Electric tool
    • Patent number 10,596,679
    • Issue date Mar 24, 2020
    • KOKI HOLDINGS CO., LTD.
    • Yuuki Takeda
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20230201989
    • Publication date Jun 29, 2023
    • Koki Holdings Co., Ltd.
    • Yuuki TAKEDA
    • B24 - GRINDING POLISHING
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20200189064
    • Publication date Jun 18, 2020
    • Koki Holdings Co., Ltd.
    • Yuuki TAKEDA
    • B24 - GRINDING POLISHING
  • Information Patent Application

    ROTARY TOOL
    • Publication number 20200055159
    • Publication date Feb 20, 2020
    • Koki Holdings Co., Ltd.
    • Hironori SAKAI
    • B24 - GRINDING POLISHING
  • Information Patent Application

    ELECTRICALLY POWERED TOOL
    • Publication number 20190358769
    • Publication date Nov 28, 2019
    • Koki Holdings Co., Ltd.
    • Ken MIYAZAWA
    • B24 - GRINDING POLISHING
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20180099372
    • Publication date Apr 12, 2018
    • Hitachi Koki Co., Ltd.
    • Yuuki TAKEDA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20150352699
    • Publication date Dec 10, 2015
    • Hitachi Koki Co., Ltd.
    • Hironori SAKAI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20150231771
    • Publication date Aug 20, 2015
    • Hitachi Koki Co., Ltd.
    • Hironori Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Rotational Impact Tool
    • Publication number 20150190908
    • Publication date Jul 9, 2015
    • Hitachi Koki Co.,Ltd.
    • Naoki Tadokoro
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL AND FASTENING METHOD USING THE SAME
    • Publication number 20150047866
    • Publication date Feb 19, 2015
    • Hitachi Koki Co., Ltd.
    • Hironori Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS