Patents by Inventor Tetsuo Okashiro

Tetsuo Okashiro 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).

  • Fuel supplying pump
    Patent number: 4904162
    Abstract: A fuel supplying pump having a switching circuit provided in the pump closing. The switching circuit stops the pump when an engine stops rotating due, for instance, to a fuel pipe breakage. The circuit having a transistor with a base connected to an oil pressure responsive switch.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: February 27, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryozo Suzuki, Jun Shiraga, Shingo Iwai, Tetsuo Okashiro
  • In-tank type motor-driven pump
    Patent number: 4768931
    Abstract: In an in-tank type motor-driven pump actuated by feeding a power from the outside of a pump casing through an external conductor, an end of the external conductor is extended inside the pump through a through hole formed in an upper motor cover; the external conductor is held in the through hole by a supporting member, and the end of the conductor is directly or indirectly connected to a brush for the motor.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: September 6, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shingo Iwai, Tetsuo Okashiro
  • Electric fuel pump
    Patent number: 4748356
    Abstract: An electric fuel pump is provided with an insulative holding member 20 for holding choke coils 16 and connecting portions 23 between the choke coils and lead wires (14) as well as between the choke coils and brushes 10, to be mounted in the interior of a pump frame 1. In this electric fuel pump, the insulative holding member 20 holds and fixes the choke coils 16 and the connecting portions around the same, thereby to protect the choke coils 16 and the nearby connecting portions against vibration and shocks applied to the fuel pump. The holding member 20 also insulates conductive parts so that the same are not in contact with a housing 1 of magnetic material or the like, thereby to improve insulativity.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: May 31, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuo Okashiro, Shingo Iwai, Ryozo Suzuki
  • In-tank type fuel pump
    Patent number: 4619591
    Abstract: An in-tank type fuel pump comprises a pump body having a cylindrical yoke with its one end closed by a cover-out member made of a synthetic resinous material, a motor held in the pump body and an impeller driven by the motor to discharge fuel sucked from an intake port to a discharge port, wherein an elongated portion extending along the inner wall of the cylindrical yoke is formed integrally with the cover-out member and each of first lead wires is extended from the interior of the pump body to the exterior of the same through each through hole formed in the elongated portion, each one end of the first lead wires in the pump body being connected to each of second lead wires connected to brushes.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: October 28, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shingo Iwai, Ryozo Suzuki, Jun Shiraga, Tetsuo Okashiro