Patents by Inventor Kuniyoshi Nagahata

Kuniyoshi Nagahata 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).

  • Liquid filling nozzle and liquid filling apparatus
    Patent number: 6729507
    Abstract: A liquid filling nozzle including: a tubular nozzle main body having a liquid supply opening and a liquid discharge port, a center rod disposed inside the nozzle main body and raised and lowered, and an opening-and-closing valve body which opens the liquid discharge port when the center rod is lowered and closes the liquid discharge port when the center rod is raised. A throttle valve mechanism formed by a throttle valve seat, which is disposed on the inside wall surface of the nozzle main body, and a throttle valve body, which is disposed on the center rod, is provided in the filling nozzle so that the throttle valve mechanism opens when the center rod is lowered, and, when the center rod is raised, the throttle valve mechanism closes before the opening-and-closing valve body closes off the liquid discharge port, thus constricting the flow path for a liquid.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: May 4, 2004
    Assignee: Toyo Jidoki Co., Ltd.
    Inventors: Kuniyoshi Nagahata, Namiyoshi Tanaka
  • Liquid filling nozzle and liquid filling apparatus
    Publication number: 20030155384
    Abstract: A liquid filling nozzle including: a tubular nozzle main body having a liquid supply opening and a liquid discharge port, a center rod disposed inside the nozzle main body and raised and lowered, and an opening-and-closing valve body which opens the liquid discharge port when the center rod is lowered and closes the liquid discharge port when the center rod is raised. A throttle valve mechanism formed by a throttle valve seat, which is disposed on the inside wall surface of the nozzle main body, and a throttle valve body, which is disposed on the center rod, is provided in the filling nozzle so that the throttle valve mechanism opens when the center rod is lowered, and, when the center rod is raised, the throttle valve mechanism closes before the opening-and-closing valve body closes off the liquid discharge port, thus constricting the flow path for a liquid.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 21, 2003
    Applicant: Toyo Jidoki Co., Ltd.
    Inventors: Kuniyoshi Nagahata, Namiyoshi Tanaka