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Seiji HIJIKATA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Construction machine
    • Patent number 12,018,458
    • Issue date Jun 25, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Work machine
    • Patent number 11,946,492
    • Issue date Apr 2, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi Hoshino
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 11,946,224
    • Issue date Apr 2, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • 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

    Hydraulic work machine
    • Patent number 11,105,070
    • Issue date Aug 31, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi Hoshino
    • B60 - VEHICLES 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 10,801,532
    • Issue date Oct 13, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi Ogawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Work machine hydraulic control system
    • Patent number 10,794,044
    • Issue date Oct 6, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi Ogawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Work machine
    • Patent number 10,787,790
    • Issue date Sep 29, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Imura
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • 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

    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

    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

    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 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

    Construction machine
    • Patent number 10,329,739
    • Issue date Jun 25, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi Hoshino
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • 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
  • Information Patent Grant

    Hydraulic energy regeneration system for work machine
    • Patent number 10,280,594
    • Issue date May 7, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Hydraulic fluid energy regeneration device for work machine
    • Patent number 10,280,593
    • Issue date May 7, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 10,273,658
    • Issue date Apr 30, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic drive system for work machine
    • Patent number 10,227,997
    • Issue date Mar 12, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machinery
    • Patent number 10,221,871
    • Issue date Mar 5, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya Imura
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic fluid energy recovery system for work
    • Patent number 10,161,108
    • Issue date Dec 25, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic fluid energy recovery apparatus for work machine
    • Patent number 10,066,368
    • Issue date Sep 4, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 10,030,361
    • Issue date Jul 24, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji Hijikata
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic system for construction machinery
    • Patent number 9,926,950
    • Issue date Mar 27, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Takatoshi Ooki
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Energy regeneration system for construction machine
    • Patent number 9,926,951
    • Issue date Mar 27, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Takatoshi Ooki
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Work Machine
    • Publication number 20240068203
    • Publication date Feb 29, 2024
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine
    • Publication number 20230323634
    • Publication date Oct 12, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi HOSHINO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine
    • Publication number 20230323635
    • Publication date Oct 12, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi HOSHINO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Work Machine
    • Publication number 20230184265
    • Publication date Jun 15, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi HOSHINO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20230105014
    • Publication date Apr 6, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20230099135
    • Publication date Mar 30, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20230085676
    • Publication date Mar 23, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20230085648
    • Publication date Mar 23, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20230084767
    • Publication date Mar 16, 2023
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • B60 - VEHICLES IN GENERAL
  • 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

    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

    HYDRAULIC WORK MACHINE
    • Publication number 20200190773
    • Publication date Jun 18, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi HOSHINO
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Work Machine Hydraulic Control System
    • Publication number 20200173145
    • Publication date Jun 4, 2020
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi OGAWA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • 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 20190186106
    • Publication date Jun 20, 2019
    • Hitachi Construction Machinery Co., Ltd.
    • Yuichi OGAWA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • 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

    Work Machine
    • Publication number 20180238025
    • Publication date Aug 23, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya IMURA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20180106018
    • Publication date Apr 19, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Masatoshi HOSHINO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • 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 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

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

    Hydraulic Drive System for Work Machine
    • Publication number 20170276155
    • Publication date Sep 28, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Drive System for Work Machine
    • Publication number 20170234334
    • Publication date Aug 17, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Seiji HIJIKATA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machinery
    • Publication number 20170175782
    • Publication date Jun 22, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Shinya IMURA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL