Patents by Inventor Ji-Min Yoon

Ji-Min Yoon 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).

  • Publication number: 20050134004
    Abstract: A method for manufacturing a cam shaft oil seal comprising a ring-shaped metal member, an inner rubber member connected to the ring-shaped metal member and contacting an outer surface of a cam shaft, and an outer rubber member connected to the ring-shaped metal member and contacting a bearing cap. The method included pouring heated rubber material into a mold after the ring-shaped metal member is disposed within the mold and applying heat in a first specified temperature for a first specified time range and then applying heat in a second specified temperature for a second time. Thereafter a surface treatment is performed for the inner rubber member and the outer rubber member formed on the metal member and a ring-shaped coil spring is installed on an outer surface of the inner rubber member.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 23, 2005
    Inventor: Ji Min Yoon
  • Patent number: 6513474
    Abstract: An assembly to secure an engine camshaft is provided that includes: a cylinder head provided with a plurality of concave parts into which the camshafts are placed, the concave parts allowing for rotation of the camshafts; and a full cam carrier mounted to the cylinder head over the camshafts and allowing for the rotation of the camshafts, the full cam carrier including a plurality of ribs corresponding to positions of the concave parts and integrally formed to the full cam carrier at predetermined intervals.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 4, 2003
    Assignee: Hyundai Motor Company
    Inventor: Ji-Min Yoon
  • Publication number: 20020185094
    Abstract: An assembly to secure an engine camshaft is provided that includes: a cylinder head provided with a plurality of concave parts into which the camshafts are placed, the concave parts allowing for rotation of the camshafts; and a full cam carrier mounted to the cylinder head over the camshafts and allowing for the rotation of the camshafts, the full cam carrier including a plurality of ribs corresponding to positions of the concave parts and integrally formed to the full cam carrier at predetermined intervals.
    Type: Application
    Filed: December 28, 2001
    Publication date: December 12, 2002
    Inventor: Ji-Min Yoon