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Chikai YOSHIMIZU

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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric operating machine
    • Patent number 10,547,182
    • Issue date Jan 28, 2020
    • KOKI HOLDINGS CO., LTD.
    • Nobuhiro Takano
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Electric device including sealing member between attachment part an...
    • Patent number 10,263,228
    • Issue date Apr 16, 2019
    • KOKI HOLDINGS CO., LTD.
    • Tomomasa Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Impact tool
    • Patent number 9,616,558
    • Issue date Apr 11, 2017
    • Hitachi Koki Co., Ltd.
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Work machine and brushless motor
    • Patent number 9,160,211
    • Issue date Oct 13, 2015
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Adaptor, assembly of battery pack and adaptor, and electric tool wi...
    • Patent number 9,065,155
    • Issue date Jun 23, 2015
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric motor having an output shaft rotatably supported by a hous...
    • Patent number 8,928,201
    • Issue date Jan 6, 2015
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 8,517,558
    • Issue date Aug 27, 2013
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Adaptor, assembly of battery pack and adaptor, and electric tool wi...
    • Patent number 8,237,404
    • Issue date Aug 7, 2012
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool with light unit
    • Patent number 7,934,847
    • Issue date May 3, 2011
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electrically driven flywheel-fastener driver
    • Patent number 7,789,281
    • Issue date Sep 7, 2010
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Electric power tool
    • Patent number 7,681,661
    • Issue date Mar 23, 2010
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Electric power tool with cover
    • Patent number 7,665,541
    • Issue date Feb 23, 2010
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Battery-powered tool capable of detecting discharged battery pack
    • Patent number 7,541,773
    • Issue date Jun 2, 2009
    • Hitachi Koki Co., Ltd.
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Commutator motor
    • Patent number 7,508,109
    • Issue date Mar 24, 2009
    • Hitachi Koki Co., Ltd.
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 7,490,746
    • Issue date Feb 17, 2009
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Power tool
    • Patent number 7,455,121
    • Issue date Nov 25, 2008
    • Hitachi Koki Co., Ltd.
    • Takuma Saito
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Commutator motor
    • Patent number 7,368,843
    • Issue date May 6, 2008
    • Hitachi Koki Co., Ltd.
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 7,344,054
    • Issue date Mar 18, 2008
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Motor-driven tool
    • Patent number 7,323,796
    • Issue date Jan 29, 2008
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Pulse torque generator and power tool having the same
    • Patent number 7,216,723
    • Issue date May 15, 2007
    • Hitachi Koki Co., Ltd.
    • Shinki Ohtsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Power tool
    • Patent number 7,185,998
    • Issue date Mar 6, 2007
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Portable tool having cover and label to be stuck on the portable to...
    • Patent number 7,140,451
    • Issue date Nov 28, 2006
    • Hitachi Koki Co., Ltd.
    • Chikai Yoshimizu
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Electric power tool
    • Patent number 7,108,079
    • Issue date Sep 19, 2006
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Commutator motor
    • Patent number 7,064,467
    • Issue date Jun 20, 2006
    • Hitachi Koki Co., Ltd.
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 7,048,075
    • Issue date May 23, 2006
    • Hitachi Koki Co., Ltd.
    • Takuma Saito
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Reciprocal-movement power tool
    • Patent number 6,938,531
    • Issue date Sep 6, 2005
    • Hitachi Koki Co., Ltd.
    • Chikai Yoshimizu
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power tool
    • Patent number 6,905,052
    • Issue date Jun 14, 2005
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Power tool
    • Patent number 6,679,406
    • Issue date Jan 20, 2004
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Motor-driven tool
    • Patent number 6,661,148
    • Issue date Dec 9, 2003
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power source unit
    • Patent number 6,495,932
    • Issue date Dec 17, 2002
    • Hitachi Koki Co., Ltd.
    • Chikai Yoshimizu
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC OPERATING MACHINE
    • Publication number 20170155258
    • Publication date Jun 1, 2017
    • Hitachi Koki Co., Ltd.
    • Nobuhiro TAKANO
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Drilling Device
    • Publication number 20160207187
    • Publication date Jul 21, 2016
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC DEVICE, BATTERY PACK, AND ELECTRIC APPARATUS
    • Publication number 20150214520
    • Publication date Jul 30, 2015
    • Hitachi Koki Co., Ltd.
    • Tomomasa Nishikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WI...
    • Publication number 20120262035
    • Publication date Oct 18, 2012
    • Hitachi Koki Co., Ltd.
    • Nobuhiro TAKANO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20120199372
    • Publication date Aug 9, 2012
    • HITACHI KOKI CO., LTD.,
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC OPERATING MACHINE
    • Publication number 20120139456
    • Publication date Jun 7, 2012
    • Nobuhiro Takano
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    ELECTRIC MOTOR AND WORKING MACHINE COMPRISING THE SAME
    • Publication number 20120104881
    • Publication date May 3, 2012
    • Hideyuki Tanimoto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    WORK MACHINE AND BRUSHLESS MOTOR
    • Publication number 20120104983
    • Publication date May 3, 2012
    • Hideyuki Tanimoto
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Power Tool
    • Publication number 20120033405
    • Publication date Feb 9, 2012
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20110199756
    • Publication date Aug 18, 2011
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Solar Power System For Charging Battery Pack
    • Publication number 20110025255
    • Publication date Feb 3, 2011
    • Hitachi Koki Co., Ltd
    • Takao Aradachi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WI...
    • Publication number 20090108806
    • Publication date Apr 30, 2009
    • Nobuhiro Takano
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC FASTENER DRIVER
    • Publication number 20090039136
    • Publication date Feb 12, 2009
    • Hideyuki Tanimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Electric power tool
    • Publication number 20090014194
    • Publication date Jan 15, 2009
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power tool
    • Publication number 20070159812
    • Publication date Jul 12, 2007
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Commutator motor
    • Publication number 20070114866
    • Publication date May 24, 2007
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power tool
    • Publication number 20070102462
    • Publication date May 10, 2007
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Portable tool having cover and label to be stuck on the portable to...
    • Publication number 20070056760
    • Publication date Mar 15, 2007
    • Chikai Yoshimizu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Commutator motor
    • Publication number 20070013252
    • Publication date Jan 18, 2007
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Tool storage case
    • Publication number 20060170395
    • Publication date Aug 3, 2006
    • Chikai Yoshimizu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pulse torque generator and power tool having the same
    • Publication number 20060137887
    • Publication date Jun 29, 2006
    • Shinki Ohtsu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Commutator motor
    • Publication number 20060131982
    • Publication date Jun 22, 2006
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electric power tool
    • Publication number 20060048959
    • Publication date Mar 9, 2006
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Battery-powered tool capable of detecting discharged battery pack
    • Publication number 20050194929
    • Publication date Sep 8, 2005
    • Kazuhiko Funabashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power tool
    • Publication number 20050157489
    • Publication date Jul 21, 2005
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power tool
    • Publication number 20050092792
    • Publication date May 5, 2005
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power tool
    • Publication number 20050061521
    • Publication date Mar 24, 2005
    • Hitachi Koki Co., Ltd.
    • Takuma Saito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Portable tool having cover and label to be stuck on the portable to...
    • Publication number 20040111933
    • Publication date Jun 17, 2004
    • Chikai Yoshimizu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power tool
    • Publication number 20040074938
    • Publication date Apr 22, 2004
    • Hitachi Koki Co., Ltd.
    • Masato Sakai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Commutator motor
    • Publication number 20040061406
    • Publication date Apr 1, 2004
    • HITACHI KOKI CO., LTD.
    • Tomoyoshi Yokota
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER