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Haruhisa Fujisawa

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    DC POWER SUPPLY DEVICE
    • Publication number 20220216799
    • Publication date Jul 7, 2022
    • Koki Holdings Co., Ltd.
    • Takuya YOSHINARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC DEVICE
    • Publication number 20170331082
    • Publication date Nov 16, 2017
    • HITACHI KOKI CO. LTD.
    • Takashi Kawamata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150255773
    • Publication date Sep 10, 2015
    • HITACHI KOKI CO. LTD.
    • Takuya Yoshinari
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150228940
    • Publication date Aug 13, 2015
    • Hitachi Koki Co., Ltd.
    • Haruhisa Fujisawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150194647
    • Publication date Jul 9, 2015
    • Hitachi Koki Co., Ltd.
    • Takuya Yoshinari
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150194646
    • Publication date Jul 9, 2015
    • Takuya Yoshinari
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Backpack-Type Power Supply
    • Publication number 20150188332
    • Publication date Jul 2, 2015
    • Hitachi Koki Co., Ltd.
    • Yasushi Nakano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    BATTERY PACK AND POWER TOOL PROVIDED WITH THE SAME
    • Publication number 20150075831
    • Publication date Mar 19, 2015
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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

    POWER TOOL SYSTEM AND POWER SUPPLY DEVICE
    • Publication number 20140015451
    • Publication date Jan 16, 2014
    • HITACHI KOKI CO. LTD.
    • Kazuhiko Funabashi
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    BACKPACK-TYPE POWER SUPPLY INCLUDING OPERATION PORTION
    • Publication number 20140011061
    • Publication date Jan 9, 2014
    • Takuya Yoshinari
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CHARGER AND POWER SUPPLY SYSTEM
    • Publication number 20140001853
    • Publication date Jan 2, 2014
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SUPPLY DEVICE, INVERTER DEVICE, POWER TOOL
    • Publication number 20130285476
    • Publication date Oct 31, 2013
    • HITACHI KOKI CO. LTD.
    • Yasushi Nakano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Battery Adapter and Power Source Device Employing Same
    • Publication number 20130051104
    • Publication date Feb 28, 2013
    • Hitachi Koki Co., Ltd.
    • Yasushi Nakano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Battery-Driven Power Tool and Battery Pack Therefor
    • Publication number 20110031975
    • Publication date Feb 10, 2011
    • Hitachi Koki Co., Ltd
    • Yoshikazu Kawano
    • G01 - MEASURING TESTING
  • Information Patent Application

    BATTERY PACK AND POWER TOOL PROVIDED WITH THE SAME
    • Publication number 20100248016
    • Publication date Sep 30, 2010
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Battery Pack and Battery-Driven Power Tool Using the Same
    • Publication number 20100092850
    • Publication date Apr 15, 2010
    • Hitachi Koki Co., Ltd.
    • Takashi Ueda
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    BATTERY CHARGER
    • Publication number 20090085514
    • Publication date Apr 2, 2009
    • HITACHI KOKI CO., LTD.
    • Toshio Mizoguchi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Battery Charger
    • Publication number 20090051313
    • Publication date Feb 26, 2009
    • Kazunobu Yoshimura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COMBUSTION TYPE POWER TOOL
    • Publication number 20080308593
    • Publication date Dec 18, 2008
    • Yoshitaka Akiba
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Charging Device
    • Publication number 20080231229
    • Publication date Sep 25, 2008
    • Takao Aradachi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Battery Charger Operable for Selective One of a Plurality of Power...
    • Publication number 20080231236
    • Publication date Sep 25, 2008
    • Shinji WATANABE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    COMBUSTION-POWERED TOOL WITH IMPROVED IGNITION STARTING FEATURE
    • Publication number 20080223895
    • Publication date Sep 18, 2008
    • HITACHI KOKI CO., LTD.
    • Haruhisa Fujisawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion-Type Power Tool Having Cooling Arrangement
    • Publication number 20070240651
    • Publication date Oct 18, 2007
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion type power tool having buffer piece
    • Publication number 20070227477
    • Publication date Oct 4, 2007
    • Yoshitaka Akiba
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion-type power tool
    • Publication number 20070034661
    • Publication date Feb 15, 2007
    • Yoshitaka Akiba
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion type power tool having motor suspension arrangement
    • Publication number 20060249107
    • Publication date Nov 9, 2006
    • Yoshitaka Akiba
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion type power tool having fin in low turbulent combustion r...
    • Publication number 20060225675
    • Publication date Oct 12, 2006
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion-type power tool having switch protection arrangement
    • Publication number 20060185630
    • Publication date Aug 24, 2006
    • Haruhisa Fujisawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Combustion-type power tool having ignition proof arrangement
    • Publication number 20060185629
    • Publication date Aug 24, 2006
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS