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Takuhiro Murakami

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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical apparatus using battery pack
    • Patent number 11,837,741
    • Issue date Dec 5, 2023
    • KOKI HOLDINGS CO., LTD.
    • Takuhiro Murakami
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery pack, electrical device using battery pack, and electrical...
    • Patent number 11,824,169
    • Issue date Nov 21, 2023
    • KOKI HOLDINGS CO., LTD.
    • Tomomasa Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery pack, and electric appliance using battery pack
    • Patent number 11,757,293
    • Issue date Sep 12, 2023
    • KOKI HOLDINGS CO., LTD.
    • Tomomasa Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric device
    • Patent number 11,577,376
    • Issue date Feb 14, 2023
    • KOKI HOLDINGS CO., LTD.
    • Kengo Tamura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery pack, electrical device using battery pack, and electrical...
    • Patent number 11,205,820
    • Issue date Dec 21, 2021
    • KOKI HOLDINGS CO., LTD.
    • Hiroyuki Hanawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Work machine
    • Patent number 10,836,019
    • Issue date Nov 17, 2020
    • KOKI HOLDINGS CO., LTD.
    • Akira Matsushita
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 10,654,153
    • Issue date May 19, 2020
    • KOKI HOLDINGS CO., LTD.
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power supply device
    • Patent number 9,345,156
    • Issue date May 17, 2016
    • Hitachi Koki Co., Ltd.
    • Masayuki Ogura
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Portable working machine
    • Patent number 8,876,578
    • Issue date Nov 4, 2014
    • Hitachi Koki Co., Ltd.
    • Takuhiro Murakami
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply device
    • Patent number D668608
    • Issue date Oct 9, 2012
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery pack
    • Patent number D622660
    • Issue date Aug 31, 2010
    • Hitachi Koki Co., Ltd.
    • Takeshi Taniguchi
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Impact tool
    • Patent number 7,416,031
    • Issue date Aug 26, 2008
    • Hitachi Koki Co., Ltd.
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Driving tool having piston and driver blade
    • Patent number 7,328,494
    • Issue date Feb 12, 2008
    • Hitachi Koki Co., Ltd.
    • Hiroki Kitagawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Nailing machine
    • Patent number 6,921,009
    • Issue date Jul 26, 2005
    • Hitachi Koki Co., Ltd.
    • Satsuo Sato
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric power tool
    • Patent number 6,863,135
    • Issue date Mar 8, 2005
    • Hitachi Koki Co., Ltd.
    • Junichi Kamimura
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Electric power tool
    • Patent number 6,619,410
    • Issue date Sep 16, 2003
    • Hitachi Koki Co., Ltd.
    • Junichi Kamimura
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

  • Information Patent Application

    BATTERY PACK, ELECTRIC DEVICE USING BATTERY PACK, AND ELECTRIC DEVI...
    • Publication number 20240055674
    • Publication date Feb 15, 2024
    • Koki Holdings Co., Ltd.
    • Tomomasa NISHIKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRIC DEVICE
    • Publication number 20200215679
    • Publication date Jul 9, 2020
    • Koki Holdings Co., Ltd.
    • Kengo TAMURA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRICAL APPARATUS USING BATTERY PACK
    • Publication number 20200161609
    • Publication date May 21, 2020
    • Koki Holdings Co., Ltd.
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BATTERY PACK, ELECTRIC APPLIANCE USING BATTERY PACK, AND ELECTRIC A...
    • Publication number 20190259984
    • Publication date Aug 22, 2019
    • Koki Holdings Co., Ltd.
    • Tomomasa NISHIKAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BATTERY PACK, ELECTRICAL DEVICE USING BATTERY PACK, AND ELECTRICAL...
    • Publication number 20190259985
    • Publication date Aug 22, 2019
    • Koki Holdings Co., Ltd.
    • Hiroyuki HANAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BATTERY PACK, AND ELECTRIC APPLIANCE USING BATTERY PACK
    • Publication number 20190260209
    • Publication date Aug 22, 2019
    • Koki Holdings Co., Ltd.
    • Tomomasa NISHIKAWA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CUTTING TOOL
    • Publication number 20190193174
    • Publication date Jun 27, 2019
    • Koki Holdings Co., Ltd.
    • Takuhiro MURAKAMI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20180117745
    • Publication date May 3, 2018
    • Hitachi Koki Co., Ltd.
    • Takuhiro MURAKAMI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    WORK MACHINE
    • Publication number 20180001444
    • Publication date Jan 4, 2018
    • Hitachi Koki Co., Ltd.
    • Akira MATSUSHITA
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20170036327
    • Publication date Feb 9, 2017
    • Hitachi Koki Co., Ltd.
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ENGINE WORKING MACHINE
    • Publication number 20160273467
    • Publication date Sep 22, 2016
    • Hitachi Koki Co., Ltd.
    • Yoshikazu KAWANO
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ENGINE-POWERED TOOL
    • Publication number 20140366830
    • Publication date Dec 18, 2014
    • Yoshikazu Kawano
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Power Supply Device
    • Publication number 20140153171
    • Publication date Jun 5, 2014
    • Hitachi Koki Co., Ltd.
    • Masayuki Ogura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ENGINE WORKING MACHINE
    • Publication number 20130213356
    • Publication date Aug 22, 2013
    • Hitachi Koki Co., Ltd.
    • Takuhiro Murakami
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ENGINE AND ENGINE OPERATING MACHINE INCLUDING THE SAME
    • Publication number 20130160740
    • Publication date Jun 27, 2013
    • Hitachi Koki Co., Ltd.
    • Junichi Kamimura
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PORTABLE WORKING MACHINE
    • Publication number 20120276823
    • Publication date Nov 1, 2012
    • HITACHI KOKI CO., LTD.
    • Takuhiro MURAKAMI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20070179328
    • Publication date Aug 2, 2007
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Driving tool having piston and driver blade
    • Publication number 20070067980
    • Publication date Mar 29, 2007
    • Hiroki Kitagawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Impact tool
    • Publication number 20070034398
    • Publication date Feb 15, 2007
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Impact tool
    • Publication number 20060254789
    • Publication date Nov 16, 2006
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Impact tool
    • Publication number 20060254786
    • Publication date Nov 16, 2006
    • Takuhiro Murakami
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Driving tool having piston and driver blade
    • Publication number 20040238591
    • Publication date Dec 2, 2004
    • Hiroki Kitagawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Electric power tool
    • Publication number 20040040399
    • Publication date Mar 4, 2004
    • Hitachi Koki Co., Ltd.
    • Junichi Kamimura
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Nailing machine
    • Publication number 20030080171
    • Publication date May 1, 2003
    • Hitachi Koki Co., Ltd.
    • Satsuo Sato
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Electric power tool
    • Publication number 20020020540
    • Publication date Feb 21, 2002
    • Junichi Kamimura
    • B24 - GRINDING POLISHING