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Hidekazu Harada

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • 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

    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

    Dust collector
    • Patent number 7,296,323
    • Issue date Nov 20, 2007
    • Hitachi Koki Co., Ltd.
    • Yoshimasa Hayama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    DC power source unit with battery charging function
    • Patent number 7,196,911
    • Issue date Mar 27, 2007
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    DC power source unit with battery charging function
    • Patent number 7,145,314
    • Issue date Dec 5, 2006
    • Hitachi Koki Co., Ltd.
    • Takao Aradachi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Battery charger capable of accurately detecting battery temperature...
    • Patent number 7,064,523
    • Issue date Jun 20, 2006
    • Hitachi Koki Co., Ltd.
    • Takao Aradachi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Battery charger capable of accurately determining fully charged con...
    • Patent number 6,420,853
    • Issue date Jul 16, 2002
    • Hitachi Koki Co., Ltd.
    • Hidekazu Harada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • 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

    Power tool
    • Publication number 20070159812
    • Publication date Jul 12, 2007
    • Katsuhiro Oomori
    • 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

    Battery charger capable of accurately detecting battery temperature...
    • Publication number 20050017691
    • Publication date Jan 27, 2005
    • Takao Aradachi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC power source unit with battery charging function
    • Publication number 20050013144
    • Publication date Jan 20, 2005
    • Nobuhiro Takano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC power source unit with battery charging function
    • Publication number 20040232892
    • Publication date Nov 25, 2004
    • Takao Aradachi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Dust collector
    • Publication number 20040060145
    • Publication date Apr 1, 2004
    • Hitachi Koki Co, Ltd.
    • Yoshimasa Hayama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Battery pack and cordless power tool using the same as power source
    • Publication number 20030096158
    • Publication date May 22, 2003
    • HITACHI KOKI CO., LTD.
    • Nobuhiro Takano
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BATTERY CHARGER CAPABLE OF ACCURATELY DETERMINING FULLY CHARGED CON...
    • Publication number 20020060552
    • Publication date May 23, 2002
    • HITACHI KOKI CO., LTD.
    • Hidekazu Harada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER