Patents by Inventor Yong Kun Kim

Yong Kun Kim 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).

  • Panel in cathode ray tube
    Patent number: 6337535
    Abstract: Panel in a cathode ray tube having a flat outside and a curved inside surfaces, which can provide a perfect flat image at an appropriate distance of view, wherein a condition of 2.48×106(mm2)≦R×CFT≦4.38×106(mm2) is set for the CRT for use as a TV receiver, and a condition of 2.17×105(mm2)≦R×CFT≦6.93×105(mm2) is set for the CRT for use as a monitor, where R is a curvature represented by at least one of vertical, horizontal and diagonal curvatures of the inside surface of the panel and CFT is a center thickness of the panel.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: January 8, 2002
    Assignee: LG Electronics Inc.
    Inventor: Yong Kun Kim
  • Color cathode ray tube
    Publication number: 20010007407
    Abstract: Color cathode ray tube including a panel in front portion of the cathode ray tube, and a shadow mask spaced from, and fitted to rear of the panel for selecting a color from electron beams, wherein at least one of an inside surface of the panel and the shadow mask have a curvature structure in which a radius of curvature varies continuously within a fixed ratio range, thereby enhancing a strength and improving howling.
    Type: Application
    Filed: January 5, 2001
    Publication date: July 12, 2001
    Applicant: LG Electronics Inc.
    Inventor: Yong Kun Kim