Patents by Inventor Jin Gyu Cho

Jin Gyu Cho 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).

  • Small-sized motor apparatus for vehicle provided with improved shaft thrust gap prevention structure
    Patent number: 11251678
    Abstract: A small-sized motor apparatus for a vehicle, includes: a frame; a drive shaft mounted to the frame, a driven shaft to rotate dependently on the drive shaft, the driven shaft including a second worm gear; a cover coupled to the frame; a plate-shaped washer member; and a gap spring member preventing an axial movement of the driven shaft, the gap spring member being assembled in a radial direction of the driven shaft and installed such that one side of the gap spring member is contact-supported by the plate-shaped washer member and the other side of the gap spring member is supported by the frame, wherein the frame includes a slide groove that accommodates both ends of the gap spring member and the plate-shaped washer member and restricts the gap spring member from moving in an axial direction of the driven shaft.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: February 15, 2022
    Assignee: DY AUTO Corporation
    Inventors: Sung Min Park, Jin Gyu Cho
  • SMALL-SIZED MOTOR APPARATUS FOR VEHICLE PROVIDED WITH IMPROVED SHAFT THRUST GAP PREVENTION STRUCTURE
    Publication number: 20200244142
    Abstract: A small-sized motor apparatus for a vehicle, includes: a frame; a drive shaft mounted to the frame, a driven shaft to rotate dependently on the drive shaft, the driven shaft including a second worm gear; a cover coupled to the frame; a plate-shaped washer member; and a gap spring member preventing an axial movement of the driven shaft, the gap spring member being assembled in a radial direction of the driven shaft and installed such that one side of the gap spring member is contact-supported by the plate-shaped washer member and the other side of the gap spring member is supported by the frame, wherein the frame includes a slide groove that accommodates both ends of the gap spring member and the plate-shaped washer member and restricts the gap spring member from moving in an axial direction of the driven shaft.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 30, 2020
    Applicant: DY AUTO Corporation
    Inventors: Sung Min Park, Jin Gyu Cho