Patents by Inventor Yuichirou Oota

Yuichirou Oota has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electric fuel pump capable of supplying fuel at high flow rate
    Patent number: 8257064
    Abstract: An electric fuel pump is disclosed which includes a pump portion, a motor portion, a housing, and a fuel passage. The pump portion pressurizes fuel. The motor portion drives the pump portion. The motor portion includes a rotor with a rotating shaft and a stator that surrounds an outer periphery of the rotor. The housing surrounds, at least, an outer periphery of the stator of the motor portion. The fuel passage, through which the fuel pressurized by the pump portion passes the motor portion, is made up of a clearance between the outer periphery of the stator of the motor portion and an inner periphery of the housing. The clearance extends, at least, in the axial direction of the rotating shaft of the rotor of the motor portion.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 4, 2012
    Assignee: Denso Corporation
    Inventors: Yuichirou Oota, Masaya Ootake, Kiyoshi Nagata
  • ELECTRIC FUEL PUMP CAPABLE OF SUPPLYING FUEL AT HIGH FLOW RATE
    Publication number: 20100034674
    Abstract: An electric fuel pump is disclosed which includes a pump portion, a motor portion, a housing, and a fuel passage. The pump portion pressurizes fuel. The motor portion drives the pump portion. The motor portion includes a rotor with a rotating shaft and a stator that surrounds an outer periphery of the rotor. The housing surrounds, at least, an outer periphery of the stator of the motor portion. The fuel passage, through which the fuel pressurized by the pump portion passes the motor portion, is made up of a clearance between the outer periphery of the stator of the motor portion and an inner periphery of the housing. The clearance extends, at least, in the axial direction of the rotating shaft of the rotor of the motor portion.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: DENSO CORPORATION
    Inventors: Yuichirou Oota, Masaya Ootake, Kiyoshi Nagata