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Yoshiyasu Umezu

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Slewing control device and working machine incorporated with the same
    • Patent number 8,405,328
    • Issue date Mar 26, 2013
    • Kobelco Construction Machinery Co., Ltd.
    • Masayuki Komiyama
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control device of construction machine
    • Patent number 7,818,968
    • Issue date Oct 26, 2010
    • Kobelco Construction Machinery Co., Ltd.
    • Yoshiyasu Umezu
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Small swing type shovel
    • Patent number 7,523,804
    • Issue date Apr 28, 2009
    • Kobelco Construction Machinery Co., Ltd.
    • Kiyokazu Tanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Control device for construction machine
    • Patent number 7,500,535
    • Issue date Mar 10, 2009
    • Kobelco Construction Machinery Co., Ltd.
    • Yoshiki Kamon
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Engine control device of construction machinery
    • Patent number 7,497,195
    • Issue date Mar 3, 2009
    • Kobelco Construction Machinery Co., Ltd.
    • Yoshiyasu Umezu
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Engine control device of construction machinery
    • Patent number 7,191,758
    • Issue date Mar 20, 2007
    • Kobelco Construction Machinery Co., Ltd.
    • Yoshiyasu Umezu
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic excavator
    • Patent number 7,174,968
    • Issue date Feb 13, 2007
    • Kobelco Construction Machinery Co., Ltd.
    • Takayuki Okunishi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 7,001,135
    • Issue date Feb 21, 2006
    • Kobelco Construction Machinery Co., Ltd.
    • Hiroshi Shimokakiuchi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    SLEWING CONTROL DEVICE AND WORKING MACHINE INCORPORATED WITH THE SAME
    • Publication number 20110227512
    • Publication date Sep 22, 2011
    • KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    • Masayuki KOMIYAMA
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    HYDRAULIC CONTROL DEVICE OF CONSTRUCTION MACHINE
    • Publication number 20080173014
    • Publication date Jul 24, 2008
    • KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    • Yoshiyasu Umezu
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Working machine
    • Publication number 20060266029
    • Publication date Nov 30, 2006
    • KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    • Tomohiko Asakage
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Control device for contruction machine
    • Publication number 20060179830
    • Publication date Aug 17, 2006
    • Yoshiki Kamon
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Engine control device of contruction machinery
    • Publication number 20060048735
    • Publication date Mar 9, 2006
    • Yoshiyasu Umezu
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Hydraulic excavator
    • Publication number 20040237353
    • Publication date Dec 2, 2004
    • KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    • Takayuki Okunishi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Construction machine
    • Publication number 20040163865
    • Publication date Aug 26, 2004
    • KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    • Hiroshi Shimokakiuchi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING