TREA

Yutaka Tohji

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic control device of a working machine
    • Patent number 6,378,303
    • Issue date Apr 30, 2002
    • Kobe Steel, Ltd.
    • Fumikazu Higuchi
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 6,148,548
    • Issue date Nov 21, 2000
    • Kabushiki Kaisha Kobe Seiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Control apparatus for hydraulic excavator
    • Patent number 6,050,090
    • Issue date Apr 18, 2000
    • Kabushiki Kaisha Kobe Seiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control circuit in a hydraulic excavator
    • Patent number 5,996,341
    • Issue date Dec 7, 1999
    • Kabushiki Kaisha Kobe Keiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control circuit in a hydraulic excavator
    • Patent number 5,970,709
    • Issue date Oct 26, 1999
    • Kabushiki Kaisha Kobe Seiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Construction machine
    • Patent number 5,950,430
    • Issue date Sep 14, 1999
    • Kabushiki Kaisha Kobe Seiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic control system
    • Patent number 5,743,089
    • Issue date Apr 28, 1998
    • Kabushiki Kaisha Kobe Seiko Sho
    • Yutaka Tohji
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING