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Hideaki Ohnishi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable displacement oil pump including swing member
    • Patent number 11,905,948
    • Issue date Feb 20, 2024
    • Hitachi Astemo, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement pump and control method therefor
    • Patent number 11,415,128
    • Issue date Aug 16, 2022
    • Hitachi Astemo, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable capacity pump and working oil supply system for internal c...
    • Patent number 11,215,178
    • Issue date Jan 4, 2022
    • Hitachi Astemo, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 11,168,684
    • Issue date Nov 9, 2021
    • Hitachi Astemo, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement-type oil pump
    • Patent number 10,947,972
    • Issue date Mar 16, 2021
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Atsushi Naganuma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable capacity oil pump
    • Patent number 10,947,973
    • Issue date Mar 16, 2021
    • Hitachi Automotive Systems, Ltd.
    • Atsushi Naganuma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil pump and balancer unit of oil pump integrated type
    • Patent number 10,941,681
    • Issue date Mar 9, 2021
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Daisuke Kato
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement oil pump
    • Patent number 9,903,367
    • Issue date Feb 27, 2018
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement pump
    • Patent number 9,670,926
    • Issue date Jun 6, 2017
    • HITACHI AUTOMATIVE SYSTEMS, LTD.
    • Hideaki Ohnishi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement pump
    • Patent number RE46294
    • Issue date Jan 31, 2017
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
  • Information Patent Grant

    Vane pump
    • Patent number 9,556,867
    • Issue date Jan 31, 2017
    • Hitachi Automotive Systems, Ltd.
    • Koji Saga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement pump
    • Patent number 9,534,596
    • Issue date Jan 3, 2017
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 9,518,484
    • Issue date Dec 13, 2016
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable displacement oil pump
    • Patent number 9,494,153
    • Issue date Nov 15, 2016
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil pump for internal combustion engine, and relief pressure contro...
    • Patent number 9,453,440
    • Issue date Sep 27, 2016
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Variable-capacity oil pump and oil supply system using same
    • Patent number 9,347,344
    • Issue date May 24, 2016
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 9,133,842
    • Issue date Sep 15, 2015
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 9,109,596
    • Issue date Aug 18, 2015
    • Hitachi Automotive Systems, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable vane pump with communication groove in the cam ring
    • Patent number 9,046,100
    • Issue date Jun 2, 2015
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement vane pump having multiple dampening springs
    • Patent number 9,004,882
    • Issue date Apr 14, 2015
    • Hitachi Automotive Systems, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Apparatus having control valve and variable capacitance pump and hy...
    • Patent number 8,834,132
    • Issue date Sep 16, 2014
    • Hitachi Automotive Systems, Ltd.
    • Hiroyuki Kato
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 8,684,702
    • Issue date Apr 1, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement pump
    • Patent number 8,613,610
    • Issue date Dec 24, 2013
    • Hitachi Automotive Systems, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement oil pump
    • Patent number 8,545,200
    • Issue date Oct 1, 2013
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement vane pump
    • Patent number 8,142,173
    • Issue date Mar 27, 2012
    • Hitachi, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil pump
    • Patent number 8,075,284
    • Issue date Dec 13, 2011
    • Hitachi, Ltd.
    • Shoji Morita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Variable displacement pump, valve timing control device using the v...
    • Patent number 7,827,947
    • Issue date Nov 9, 2010
    • Hitachi, Ltd.
    • Yoshinori Ichinosawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil pump
    • Patent number 7,704,061
    • Issue date Apr 27, 2010
    • Hitachi, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil pump
    • Patent number 7,361,002
    • Issue date Apr 22, 2008
    • Hitachi, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Tandem type trochoid pump and method of assembling the same
    • Patent number 7,290,995
    • Issue date Nov 6, 2007
    • Hitachi, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP AND CONTROL METHOD THEREFOR
    • Publication number 20200141403
    • Publication date May 7, 2020
    • Hitachi Automotive Systems, Ltd.
    • Koji SAGA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP
    • Publication number 20200141407
    • Publication date May 7, 2020
    • Hitachi Automotive Systems, Ltd.
    • Daisuke KATO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20200032793
    • Publication date Jan 30, 2020
    • Hitachi Automotive Systems, Ltd.
    • Koji SAGA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL PUMP AND BALANCER UNIT OF OIL PUMP INTEGRATED TYPE
    • Publication number 20190345852
    • Publication date Nov 14, 2019
    • Hitachi Automotive Systems, Ltd.
    • Daisuke KATO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE CAPACITY PUMP AND WORKING OIL SUPPLY SYSTEM FOR INTERNAL C...
    • Publication number 20190226479
    • Publication date Jul 25, 2019
    • Hitachi Automotive Systems, Ltd.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE CAPACITY PUMP AND WORKING OIL SUPPLY SYSTEM FOR INTERNAL C...
    • Publication number 20190219053
    • Publication date Jul 18, 2019
    • Hitachi Automotive Systems, Ltd.
    • Atsushi NAGANUMA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT-TYPE OIL PUMP
    • Publication number 20180258930
    • Publication date Sep 13, 2018
    • Hitachi Automotive Systems, Ltd.
    • Atsushi NAGANUMA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE CAPACITY OIL PUMP
    • Publication number 20180223840
    • Publication date Aug 9, 2018
    • Hitachi Automotive Systems, Ltd.
    • Atsushi NAGANUMA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT TYPE OIL PUMP
    • Publication number 20180187676
    • Publication date Jul 5, 2018
    • Hitachi Automotive Systems, Ltd.
    • Koji SAGA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT OIL PUMP
    • Publication number 20160177950
    • Publication date Jun 23, 2016
    • Hitachi Automotive Systems, Ltd.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20150252803
    • Publication date Sep 10, 2015
    • Hitachi Automotive Systems, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Variable-Capacity Oil Pump and Oil Supply System Using Same
    • Publication number 20150218983
    • Publication date Aug 6, 2015
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20150110659
    • Publication date Apr 23, 2015
    • Hitachi Automotive Systems, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL PUMP FOR INTERNAL COMBUSTION ENGINE, AND RELIEF PRESSURE CONTRO...
    • Publication number 20150107686
    • Publication date Apr 23, 2015
    • Hitachi Automotive Systems, Ltd.
    • Yasushi WATANABE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20150020759
    • Publication date Jan 22, 2015
    • HITACHI AUTOMOTIVE SYSTEMS, LTD,
    • Yasushi WATANABE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE VANE PUMP WITH COMMUNICATION GROOVE IN THE CAM RING
    • Publication number 20140377116
    • Publication date Dec 25, 2014
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Apparatus Having Control Valve and Variable Capacitance Pump and Hy...
    • Publication number 20140234128
    • Publication date Aug 21, 2014
    • Hitachi Automotive Systems, Ltd.
    • Hiroyuki KATO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT OIL PUMP
    • Publication number 20140219847
    • Publication date Aug 7, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20140170008
    • Publication date Jun 19, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20140147323
    • Publication date May 29, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yasushi Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20130164163
    • Publication date Jun 27, 2013
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Variable Displacement Pump
    • Publication number 20120301342
    • Publication date Nov 29, 2012
    • Hitachi Automotive Systems, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Oil Pump
    • Publication number 20120213655
    • Publication date Aug 23, 2012
    • Hitachi Automotive Systems, Ltd.
    • Hideaki Ohnishi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP, OIL JET AND LUBLICATING SYSTEM USING VA...
    • Publication number 20110194967
    • Publication date Aug 11, 2011
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20110189043
    • Publication date Aug 4, 2011
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Yasushi Watanabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20110123379
    • Publication date May 26, 2011
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Apparatus Having Control Valve and Variable Capacitance Pump and Hy...
    • Publication number 20110085921
    • Publication date Apr 14, 2011
    • Hitachi Automotive Systems, Ltd.
    • Hiroyuki KATO
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT OIL PUMP
    • Publication number 20100232989
    • Publication date Sep 16, 2010
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT PUMP
    • Publication number 20100226799
    • Publication date Sep 9, 2010
    • HITACHI AUTOMOTIVE SYSTEMS, LTD.
    • Yasushi WATANABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP
    • Publication number 20090291000
    • Publication date Nov 26, 2009
    • Hitachi, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...