Patents by Inventor Yasuo Kurahashi

Yasuo Kurahashi 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).

  • Patent number: 4535815
    Abstract: A solenoid type flow control valve having a valve body formed with an outlet and inlet ports, a cylindrical core disposed in the valve body between the inlet and outlet ports and formed with a suitable number of valve ports for connecting the inlet port with the outlet port, a valve member slidable along the outer surface of the core to cover the valve ports, a linear motor assembly for moving the valve member to uncover the valve ports, and fluid flow passages formed around the linear motor assembly so that the fluid from the inlet port is introduced through the passages into the valve ports.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: August 20, 1985
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Takeharu Ohumi, Yasuo Kurahashi, Kyo Hattori, Kazuhiro Sakurai
  • Patent number: 4168687
    Abstract: A fuel pump for an internal combustion engine including a casing wherein partition walls divide the upper space of said casing into a fuel drawing chamber receiving fuel from a fuel tank, a fuel chamber discharging the fuel to a carburetor and a vapor separating chamber communicating with the fuel tank. A space between the fuel chamber and the vapor separating chamber enables the communication of the fuel chamber with the vapor separating chamber, so that a large portion of the vapor produced in the fuel chamber removes to the vapor separating chamber and can be returned to the fuel tank, with the result that fuel substantially free from vapor can be supplied to the carburetor.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: September 25, 1979
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yasuo Kurahashi, Takayuki Yoshimura, Takashi Miyake, Hidenori Tateno