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Kazuhiro OOTSUKA

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Driving tool with switching mechanism
    • Patent number 11,724,375
    • Issue date Aug 15, 2023
    • KOKI HOLDINGS CO., LTD.
    • Kazuhiro Ootsuka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driving tool
    • Patent number 11,623,330
    • Issue date Apr 11, 2023
    • KOKI HOLDINGS CO., LTD.
    • Kazuhiro Ootsuka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driving tool
    • Patent number 11,571,793
    • Issue date Feb 7, 2023
    • KOKI HOLDINGS CO., LTD.
    • Kazuhiro Ootsuka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driver
    • Patent number 11,472,012
    • Issue date Oct 18, 2022
    • KOKI HOLDINGS CO., LTD.
    • Kazuhiro Ootsuka
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    WORKING MACHINE
    • Publication number 20240139922
    • Publication date May 2, 2024
    • Koki Holdings Co., Ltd.
    • Takashi KAWAMATA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING DEVICE
    • Publication number 20230025226
    • Publication date Jan 26, 2023
    • Koki Holdings Co., Ltd.
    • Sotaro AIZAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL
    • Publication number 20220126431
    • Publication date Apr 28, 2022
    • Koki Holdings Co., Ltd.
    • Kazuhiro OOTSUKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL
    • Publication number 20210308851
    • Publication date Oct 7, 2021
    • Koki Holdings Co., Ltd.
    • Kazuhiro OOTSUKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL
    • Publication number 20210229249
    • Publication date Jul 29, 2021
    • Koki Holdings Co., Ltd.
    • Kazuhiro OOTSUKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL
    • Publication number 20210162572
    • Publication date Jun 3, 2021
    • Koki Holdings Co., Ltd.
    • Kazuhiro OOTSUKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVING TOOL
    • Publication number 20210122018
    • Publication date Apr 29, 2021
    • Koki Holdings Co., Ltd.
    • Sotaro AIZAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    DRIVER
    • Publication number 20200398411
    • Publication date Dec 24, 2020
    • Koki Holdings Co., Ltd.
    • Kazuhiro OOTSUKA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS