TREA

Hideshi Koiwai

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Input apparatus
    • Patent number 5,507,317
    • Issue date Apr 16, 1996
    • Kayaba Industry Co., Ltd.
    • Yoshitake Yonekubo
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Load-sensing active hydraulic control device for multiple actuators
    • Patent number 5,347,811
    • Issue date Sep 20, 1994
    • Kayaba Industry Co., Ltd.
    • Yoshimi Hasegawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Input apparatus
    • Patent number 5,348,049
    • Issue date Sep 20, 1994
    • Kayaba Industry Co., Ltd.
    • Yoshitake Yonekubo
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Input apparatus
    • Patent number 5,251,534
    • Issue date Oct 12, 1993
    • Kayaba Industry Co. Ltd.
    • Yoshitake Yonekubo
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Hydraulic drive system
    • Patent number 5,168,705
    • Issue date Dec 8, 1992
    • Hitachi Construction Machinery Co., Ltd.
    • Toichi Hirata
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Control valve for construction equipment
    • Patent number 4,858,651
    • Issue date Aug 22, 1989
    • Kayaba Industry Co. Ltd.
    • Hideshi Koiwai
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure control valve
    • Patent number 4,351,356
    • Issue date Sep 28, 1982
    • Kayaba Kogyo Kabushiki Kaisha
    • Hideshi Koiwai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure control valve
    • Patent number 4,289,160
    • Issue date Sep 15, 1981
    • Kayaba Kogyo Kabushiki Kaisha
    • Haruhiko Kawasaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...