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Katsuhiro Oomori

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Patents Grantslast 30 patents

  • Information Patent Grant

    Power tool
    • Patent number 9,950,417
    • Issue date Apr 24, 2018
    • Hitachi Koki Co., Ltd.
    • Yutaka Ito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • 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

    Electric power tool
    • Patent number 9,590,475
    • Issue date Mar 7, 2017
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact tool
    • Patent number 9,522,461
    • Issue date Dec 20, 2016
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 9,391,491
    • Issue date Jul 12, 2016
    • Hitachi Koki Co., Ltd.
    • Kenichirou Yoshida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Impact tool
    • Patent number 9,314,908
    • Issue date Apr 19, 2016
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric tool
    • Patent number 9,126,316
    • Issue date Sep 8, 2015
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 9,048,699
    • Issue date Jun 2, 2015
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Electric power tool
    • Patent number 8,627,900
    • Issue date Jan 14, 2014
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Battery pack and cordless tool using the same
    • Patent number 8,579,042
    • Issue date Nov 12, 2013
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 8,541,913
    • Issue date Sep 24, 2013
    • Hitachi Koki Co., Ltd.
    • Kenichirou Yoshida
    • 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

    Battery pack and cordless tool using the same
    • Patent number 8,381,829
    • Issue date Feb 26, 2013
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power tool
    • Patent number 8,253,285
    • Issue date Aug 28, 2012
    • Hitachi Koki Co., Ltd.
    • Kenichirou Yoshida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Cordless power tool and battery device used for same
    • Patent number 8,198,835
    • Issue date Jun 12, 2012
    • Hitachi Koki Co., Ltd.
    • Kousei Yokoyama
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 8,087,556
    • Issue date Jan 3, 2012
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool
    • Patent number 8,084,901
    • Issue date Dec 27, 2011
    • 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

    Electric tool with closable air ports
    • Patent number 7,832,499
    • Issue date Nov 16, 2010
    • Hitachi Koki Co., Ltd.
    • Yoshihiro Komuro
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power tool equipped with light
    • Patent number 7,677,752
    • Issue date Mar 16, 2010
    • Hitachi Koki Co., Ltd.
    • Naoki Tadokoro
    • 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

    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

    Power tool
    • Patent number 7,375,447
    • Issue date May 20, 2008
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    Portable electric driver
    • Patent number D567615
    • Issue date Apr 29, 2008
    • Hitachi Koki Co., Ltd.
    • Takeshi Taniguchi
    • D08 - Tools and hardware
  • 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

Patents Applicationslast 30 patents

  • Information Patent Application

    Electric Power Tool
    • Publication number 20140139055
    • Publication date May 22, 2014
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20140124229
    • Publication date May 8, 2014
    • Hitachi Koki Co., Ltd.
    • Shigeru Takahashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20140069672
    • Publication date Mar 13, 2014
    • Hitachi Koki Co., Ltd.
    • Hironori Mashiko
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20140015350
    • Publication date Jan 16, 2014
    • Hitachi Koki Co., Ltd.
    • Kenichirou Yoshida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20130333910
    • Publication date Dec 19, 2013
    • HITACHI KOKI CO., LTD.,
    • Hideyuki Tanimoto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20130255981
    • Publication date Oct 3, 2013
    • Hitachi Koki Co., Ltd.
    • Keiko Noto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20130255982
    • Publication date Oct 3, 2013
    • Hitachi Koki Co., Ltd.
    • Shigeru Takahashi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BATTERY PACK AND CORDLESS TOOL USING THE SAME
    • Publication number 20130154549
    • Publication date Jun 20, 2013
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Hanawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Screw Tightening Tool
    • Publication number 20130126202
    • Publication date May 23, 2013
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Impact Tool
    • Publication number 20130087355
    • Publication date Apr 11, 2013
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20130075121
    • Publication date Mar 28, 2013
    • Hitachi Koki Co., Ltd.
    • Mizuho Nakamura
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    POWER TOOL
    • Publication number 20130062086
    • Publication date Mar 14, 2013
    • Hitachi Koki Co., Ltd.
    • Yutaka Ito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20130025892
    • Publication date Jan 31, 2013
    • Hitachi Koki Co., Ltd.
    • Hironori Mashiko
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20130014967
    • Publication date Jan 17, 2013
    • Hitachi Koki Co., Ltd.
    • Yutaka Ito
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20130008679
    • Publication date Jan 10, 2013
    • Hitachi Koki Co., Ltd.
    • Tomomasa Nishikawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20120319508
    • Publication date Dec 20, 2012
    • Hitachi Koki Co., Ltd.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Impact Tool
    • Publication number 20120292065
    • Publication date Nov 22, 2012
    • HITACHI KOKI CO. LTD.
    • Tomoyuki Hoshi
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    IMPACT TOOL
    • Publication number 20120279736
    • Publication date Nov 8, 2012
    • Hitachi Koki Co., Ltd.
    • Hideyuki Tanimoto
    • 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

    Power Tool
    • Publication number 20120200181
    • Publication date Aug 9, 2012
    • Kenichirou Yoshida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    Electric Power Tool
    • Publication number 20110180286
    • Publication date Jul 28, 2011
    • Hitachi Koki Co., Tld
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BATTERY CHARGER
    • Publication number 20110025269
    • Publication date Feb 3, 2011
    • Kazuhiko Funabashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER TOOL
    • Publication number 20100244592
    • Publication date Sep 30, 2010
    • HITACHI KOKI CO. LTD.
    • Katsuhiro Oomori
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CORDLESS POWER TOOL AND BATTERY DEVICE USED FOR SAME
    • Publication number 20090237012
    • Publication date Sep 24, 2009
    • Kousei Yokoyama
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BATTERY PACK AND CORDLESS TOOL USING THE SAME
    • Publication number 20090071675
    • Publication date Mar 19, 2009
    • Hiroyuki Hanawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRIC TOOL
    • Publication number 20080302551
    • Publication date Dec 11, 2008
    • HITACHI KOKI CO., LTD.
    • Yoshihiro KOMURO
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Power Tool
    • Publication number 20080265695
    • Publication date Oct 30, 2008
    • Kenichirou Yoshida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER TOOL
    • Publication number 20080185410
    • Publication date Aug 7, 2008
    • Katsuhiro OOMORI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS