TREA

Kazumasa Yuasa

Follow

Person

  • Ibaraki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Feedback link for swash plate-type variable displacement hydraulic...
    • Patent number 7,814,823
    • Issue date Oct 19, 2010
    • Hitachi Construction Machinery Co., Ltd.
    • Masakazu Takahashi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Valve apparatus
    • Patent number 5,140,815
    • Issue date Aug 25, 1992
    • Hitachi Construction Machinery Co., Ltd.
    • Genroku Sugiyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure control valve
    • Patent number 4,942,900
    • Issue date Jul 24, 1990
    • Hitachi Construction Machinery Co., Ltd.
    • Yusaku Nozawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents