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Ryohei Yamashita

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  • Tsuchiura-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Construction machine
    • Patent number 11,346,081
    • Issue date May 31, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei Yamashita
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 11,230,819
    • Issue date Jan 25, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei Yamashita
    • 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

    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 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 control device for work machine
    • Patent number 10,060,450
    • Issue date Aug 28, 2018
    • Hitachi Construction Machinery Co., Ltd.
    • Tsutomu Udagawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Construction Machine
    • Publication number 20210332564
    • Publication date Oct 28, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei YAMASHITA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction Machine
    • Publication number 20210324602
    • Publication date Oct 21, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei YAMASHITA
    • 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 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 CONTROL SYSTEM FOR CONSTRUCTION MACHINE
    • Publication number 20170275852
    • Publication date Sep 28, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Ryohei YAMASHITA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    HYDRAULIC CONTROL SYSTEM FOR WORK MACHINE
    • Publication number 20170268540
    • Publication date Sep 21, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Hidekazu MORIKI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Control System for Work Machine
    • Publication number 20170009424
    • Publication date Jan 12, 2017
    • HITACHI CONSTRUCTION MA CHINERY CO., LTD.
    • Hidekazu MORIKI
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Control Device for Work Machine
    • Publication number 20150300378
    • Publication date Oct 22, 2015
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Tsutomu Udagawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Drive System for Work Vehicle
    • Publication number 20140245728
    • Publication date Sep 4, 2014
    • Yoshinobu Kobayashi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING