Patents Assigned to Hitchi Industries Co., Ltd.
  • Pump device
    Patent number: 7530781
    Abstract: A pump device for pressurizing a fluid to be fed, comprises: a rotary shaft, a bearing including a bearing surface adapted to face to the rotary shaft so that the rotary shaft is supported on the bearing surface in a rotatable manner, and an impeller fixed to the rotary shaft to be rotatable with the rotary shaft so that the fluid is pressurized by a rotation of the impeller.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: May 12, 2009
    Assignee: Hitchi Industries Co., Ltd.
    Inventors: Takaki Fukuchi, Taiji Hashimoto, Kazuo Amano