Patents by Inventor Fumio Yokota

Fumio Yokota 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).

  • Ultrasonic fuel injection nozzle
    Patent number: 4974780
    Abstract: An ultrasonic fuel injection nozzle comprises a generator for generating ultrasonic vibrations, a vibrator secured to the ultrasonic vibration generator and a valve for supplying fuel to the vibrator. The vibrator is secured to the ultrasonic vibration generator at one end and is formed with a cavity in its other end portion for atomizing fuel therein. The vibrator has a fuel passage communicating with the interior of the cavity. A valve is provided for normally closing the passage and for opening the passage to discharge an amount of fuel depending upon the passage opening duration. A fuel atomizing portion serves to reduce the discharged fuel to minute particles through the effect of ultrasonic vibrations.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: December 4, 1990
    Assignees: Toa Nenryo Kogyo K.K., Oval Engineering Co., Ltd.
    Inventors: Hiromi Nakamura, Kakuro Kokubo, Daijiro Hosogai, Yutaka Ogawa, Masuhiro Wada, Fumio Yokota