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Yasutaka Shimizu

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Patents Grantslast 30 patents

  • Information Patent Grant

    Power tool
    • Patent number 11,780,071
    • Issue date Oct 10, 2023
    • KOKI HOLDINGS CO., LTD.
    • Yasutaka Shimizu
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power tool
    • Patent number 9,769,990
    • Issue date Sep 26, 2017
    • Hitachi Koki Co., Ltd.
    • Toshiaki Koizumi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Portable tool
    • Patent number 9,555,537
    • Issue date Jan 31, 2017
    • Hitachi Koki Co., Ltd.
    • Kazutaka Iwata
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Chainsaw
    • Patent number 9,486,867
    • Issue date Nov 8, 2016
    • Hitachi Koki Co., Ltd.
    • Yasuo Etou
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Chainsaw
    • Patent number 9,381,665
    • Issue date Jul 5, 2016
    • Hitachi Koki Co., Ltd.
    • Miyoji Onose
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Chain saw
    • Patent number 9,044,875
    • Issue date Jun 2, 2015
    • Hitachi Koki Co., Ltd.
    • Yasutaka Shimizu
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Pruning machine
    • Patent number D706591
    • Issue date Jun 10, 2014
    • Hitachi Koki Co., Ltd.
    • Shingo Kosugi
    • D08 - Tools and hardware
  • Information Patent Grant

    Hedge trimmer
    • Patent number D650643
    • Issue date Dec 20, 2011
    • Hitachi Koki Co., Ltd.
    • Yoshiki Aoki
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver
    • Patent number D585716
    • Issue date Feb 3, 2009
    • Hitachi Koki Co., Ltd.
    • Takeshi Taniguchi
    • D08 - Tools and hardware

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER TOOL
    • Publication number 20210187722
    • Publication date Jun 24, 2021
    • Koki Holdings Co., Ltd.
    • Yasutaka SHIMIZU
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CHAINSAW
    • Publication number 20150321377
    • Publication date Nov 12, 2015
    • Hitachi Koki Co., Ltd.
    • Miyoji ONOSE
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Power Tool
    • Publication number 20150289451
    • Publication date Oct 15, 2015
    • Hitachi Koki Co., Ltd.
    • Toshiaki Koizumi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CHAINSAW
    • Publication number 20140345149
    • Publication date Nov 27, 2014
    • Yasuo Etou
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    PORTABLE TOOL
    • Publication number 20140116737
    • Publication date May 1, 2014
    • Hitachi Koki Co., Ltd.
    • Kazutaka IWATA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HEDGE TRIMMER
    • Publication number 20140047719
    • Publication date Feb 20, 2014
    • Hitachi Koki Co., Ltd.
    • Yasutaka SHIMIZU
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    CHAIN SAW
    • Publication number 20130180118
    • Publication date Jul 18, 2013
    • Hitachi Koki Co., Ltd.
    • Yasutaka Shimizu
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...