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Hiroyuki Azuma

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Patents Grantslast 30 patents

  • Information Patent Grant

    Urea water tank for construction machine
    • Patent number 11,331,605
    • Issue date May 17, 2022
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 9,777,611
    • Issue date Oct 3, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Construction machine
    • Patent number 9,623,746
    • Issue date Apr 18, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Toshinori Fujii
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Relief pressure control device for hydraulic work machine
    • Patent number 9,458,840
    • Issue date Oct 4, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Construction machine
    • Patent number 9,366,007
    • Issue date Jun 14, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Hydraulic drive device for working machine
    • Patent number 9,341,198
    • Issue date May 17, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Tsuyoshi Nakamura
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic control device for work vehicle
    • Patent number 9,340,955
    • Issue date May 17, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Atsushi Shimazu
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 9,290,906
    • Issue date Mar 22, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Takahiro Kobayashi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 9,027,697
    • Issue date May 12, 2015
    • Hitachi Construction Machinery Co., Ltd.
    • Takahiro Kobayashi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Construction machine
    • Patent number 8,979,125
    • Issue date Mar 17, 2015
    • Hitachi Construction Machinery Co., Ltd.
    • Kensuke Sato
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic drive device for construction machine
    • Patent number 8,726,648
    • Issue date May 20, 2014
    • Hitachi Construction Machinery Co., Ltd.
    • Kensuke Sato
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Prime mover revolution speed control system for hydraulic construct...
    • Patent number 8,583,332
    • Issue date Nov 12, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Mitsuhiko Kanehama
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic driving device for work machine
    • Patent number 8,516,805
    • Issue date Aug 27, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Naoki Hagiwara
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic pressure supply device for industrial vehicle
    • Patent number 8,312,793
    • Issue date Nov 20, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Steering system for engineering vehicle
    • Patent number 8,160,778
    • Issue date Apr 17, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Kazunori Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Steering device for construction vehicle
    • Patent number 7,913,801
    • Issue date Mar 29, 2011
    • Hitachi Construction Machinery Co., Ltd.
    • Tsuyoshi Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Steering system for engineering vehicle
    • Patent number 7,891,458
    • Issue date Feb 22, 2011
    • Hitachi Construction Machinery Co., Ltd.
    • Kazunori Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Urea Water Tank for Construction Machine
    • Publication number 20210220764
    • Publication date Jul 22, 2021
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki AZUMA
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20160152131
    • Publication date Jun 2, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Toshinori FUJII
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20160115840
    • Publication date Apr 28, 2016
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki AZUMA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Cooling Fan Mounting Structure for Construction Machine
    • Publication number 20150204351
    • Publication date Jul 23, 2015
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Osamu Watanabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CONSTRUCTION MACHINE
    • Publication number 20150016932
    • Publication date Jan 15, 2015
    • Hitachi Construction Machinery Co., Ltd.
    • Hiroyuki Azuma
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Drive Device for Working Machine
    • Publication number 20140090369
    • Publication date Apr 3, 2014
    • Hitachi Contruction Machinery Co., Ltd.
    • Tsuyoshi Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    CONSTRUCTION MACHINE
    • Publication number 20140023473
    • Publication date Jan 23, 2014
    • Hitachi Construction Machinery Co., Ltd.
    • Takahiro Kobayashi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    CONSTRUCTION MACHINE
    • Publication number 20130343853
    • Publication date Dec 26, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Kensuke Sato
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    CONSTRUCTION MACHINE
    • Publication number 20130319787
    • Publication date Dec 5, 2013
    • Hitachi Construction Machinery Co., Ltd.
    • Takahiro Kobayashi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Construction Machine
    • Publication number 20130294876
    • Publication date Nov 7, 2013
    • Takahiro Kobayashi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Aqueous Urea Tank Structure for Construction Machine
    • Publication number 20130276922
    • Publication date Oct 24, 2013
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Takahiro Kobayashi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Relief Pressure Control Device for Hydraulic Work Machine
    • Publication number 20130263587
    • Publication date Oct 10, 2013
    • Hitachi Costruction Machiner Co., Ltd
    • Hiroyuki Azuma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Hydraulic Control Device for Work Vehicle
    • Publication number 20130047598
    • Publication date Feb 28, 2013
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Atsushi Shimazu
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    ATTACHMENT CONTROL APPARATUS FOR HYDRAULIC EXCAVATOR
    • Publication number 20120291427
    • Publication date Nov 22, 2012
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Hiroyuki Azuma
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Driving Device for Work Machine
    • Publication number 20120000191
    • Publication date Jan 5, 2012
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Naoki Hagiwara
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Engine Control Device for Work Vehicle
    • Publication number 20120004814
    • Publication date Jan 5, 2012
    • Hitachi Construction Machinery Co., Ltd.
    • Koji Hyodo
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    PRIME MOVER REVOLUTION SPEED CONTROL SYSTEM FOR HYDRAULIC CONSTRUCT...
    • Publication number 20110276235
    • Publication date Nov 10, 2011
    • Hitachi Construction Machinery Co., Ltd.
    • Mitsuhiko KANEHAMA
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Drive Device for Construction Machine
    • Publication number 20110192156
    • Publication date Aug 11, 2011
    • Hitachi Construction Machinery Co., Ltd.
    • Kensuke Sato
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    STEERING SYSTEM FOR ENGINEERING VEHICLE
    • Publication number 20100228439
    • Publication date Sep 9, 2010
    • Kazunori Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic Pressure Supply Device for Industrial Vehicle
    • Publication number 20100204008
    • Publication date Aug 12, 2010
    • Hiroyuki Azuma
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Steering Device For Construction Vehicle
    • Publication number 20100101888
    • Publication date Apr 29, 2010
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • Tsuyoshi Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    STEERING SYSTEM FOR ENGINEERING VEHICLE
    • Publication number 20090255750
    • Publication date Oct 15, 2009
    • Kazunori Nakamura
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING