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Kouji ISHIKAWA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic excavator with area limiting control function
    • Patent number 11,466,435
    • Issue date Oct 11, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho Izumi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic excavator
    • Patent number 11,391,011
    • Issue date Jul 19, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Ryu Narikawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic drive apparatus
    • Patent number 11,377,822
    • Issue date Jul 5, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Kiwamu Takahashi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic energy recovery apparatus for working machine
    • Patent number 11,149,753
    • Issue date Oct 19, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Kiwamu Takahashi
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Work machine
    • Patent number 11,066,808
    • Issue date Jul 20, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroki Takeuchi
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Construction machine
    • Patent number 10,995,475
    • Issue date May 4, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic drive system
    • Patent number 10,907,666
    • Issue date Feb 2, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Work machine
    • Patent number 10,858,804
    • Issue date Dec 8, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroki Takeuchi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine
    • Patent number 10,801,187
    • Issue date Oct 13, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho Izumi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine
    • Patent number 10,801,532
    • Issue date Oct 13, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi Ogawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine
    • Patent number 10,794,046
    • Issue date Oct 6, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Imura
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Work machine
    • Patent number 10,774,502
    • Issue date Sep 15, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Daito Sakai
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Drive control device for construction machine
    • Patent number 10,760,245
    • Issue date Sep 1, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Yuuichirou Morita
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine
    • Patent number 10,760,246
    • Issue date Sep 1, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Work machine
    • Patent number 10,626,578
    • Issue date Apr 21, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho Izumi
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic fluid energy regeneration apparatus of work machine
    • Patent number 10,584,722
    • Issue date Mar 10, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic system for work machines
    • Patent number 10,563,378
    • Issue date Feb 18, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Hidekazu Moriki
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine
    • Patent number 10,557,251
    • Issue date Feb 11, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Imura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 10,526,767
    • Issue date Jan 7, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic energy regeneration system for work machine
    • Patent number 10,526,768
    • Issue date Jan 7, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Working machine and working machine monitoring system
    • Patent number 10,480,442
    • Issue date Nov 19, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Sato
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control system of construction machine
    • Patent number 10,472,804
    • Issue date Nov 12, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei Yamashita
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine management system
    • Patent number 10,443,215
    • Issue date Oct 15, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Sato
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hydraulic drive system for work machine
    • Patent number 10,436,229
    • Issue date Oct 8, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control system for construction machine
    • Patent number 10,400,426
    • Issue date Sep 3, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei Yamashita
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic drive system of work machine
    • Patent number 10,364,550
    • Issue date Jul 30, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroaki Amano
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic Drive System for work machine
    • Patent number 10,344,458
    • Issue date Jul 9, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control system for work machine
    • Patent number 10,330,128
    • Issue date Jun 25, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Hidekazu Moriki
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic control system for work machine
    • Patent number 10,309,079
    • Issue date Jun 4, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Hidekazu Moriki
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic drive system for work machine
    • Patent number 10,301,793
    • Issue date May 28, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Hydraulic Drive Apparatus
    • Publication number 20210340731
    • Publication date Nov 4, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Kiwamu TAKAHASHI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Energy Recovery Apparatus for Working Machine
    • Publication number 20210131452
    • Publication date May 6, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Kiwamu TAKAHASHI
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    WORK MACHINE
    • Publication number 20200332497
    • Publication date Oct 22, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho IZUMI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Drive System
    • Publication number 20200232488
    • Publication date Jul 23, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20200095748
    • Publication date Mar 26, 2020
    • HITACHI CONSTRUCTION MACHINERY CO LTD
    • Hiroki TAKEUCHI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine
    • Publication number 20200056349
    • Publication date Feb 20, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20200032485
    • Publication date Jan 30, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20200024821
    • Publication date Jan 23, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroki TAKEUCHI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190226181
    • Publication date Jul 25, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya IMURA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Work Machine
    • Publication number 20190186106
    • Publication date Jun 20, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi OGAWA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190169818
    • Publication date Jun 6, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Ryu NARIKAWA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190127946
    • Publication date May 2, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Daito SAKAI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190119886
    • Publication date Apr 25, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho IZUMI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORKING MACHINE AND WORKING MACHINE MONITORING SYSTEM
    • Publication number 20190112996
    • Publication date Apr 18, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya SATO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190106861
    • Publication date Apr 11, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho IZUMI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WORK MACHINE
    • Publication number 20190063041
    • Publication date Feb 28, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shiho IZUMI
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Hydraulic Energy Regeneration System for Work Machine
    • Publication number 20190063039
    • Publication date Feb 28, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20180274208
    • Publication date Sep 27, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    DRIVE CONTROL DEVICE FOR CONSTRUCTION MACHINE
    • Publication number 20180266079
    • Publication date Sep 20, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Yuuichirou MORITA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine
    • Publication number 20180163374
    • Publication date Jun 14, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya IMURA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Hydraulic Drive System for Work Machine
    • Publication number 20180066416
    • Publication date Mar 8, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    HYDRAULIC SYSTEM FOR WORK MACHINES
    • Publication number 20180058042
    • Publication date Mar 1, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Hidekazu MORIKI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Control System of Construction Machine
    • Publication number 20180051444
    • Publication date Feb 22, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei YAMASHITA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Fluid Energy Regeneration Apparatus of Work Machine
    • Publication number 20180051720
    • Publication date Feb 22, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Energy Regeneration System for Work Machine
    • Publication number 20180044890
    • Publication date Feb 15, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Hydraulic Drive System of Work Machine
    • Publication number 20180038079
    • Publication date Feb 8, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroaki AMANO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine, Power Unit, and Diesel Engine of Work Machine
    • Publication number 20170350327
    • Publication date Dec 7, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Manabu EDAMURA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Hydraulic Drive System for Work Machine
    • Publication number 20170298590
    • Publication date Oct 19, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CONSTRUCTION MACHINE MANAGEMENT SYSTEM
    • Publication number 20170292250
    • Publication date Oct 12, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya SATO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CONSTRUCTION MACHINE
    • Publication number 20170284064
    • Publication date Oct 5, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING