Patents by Inventor Jeong Geung Lee

Jeong Geung Lee 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).

  • Cathode ray tube having magnetic pieces at predetermined locations within the electron gun components
    Patent number: 7122950
    Abstract: The present invention relates to a color cathode ray tube and electron gun, and more particularly, to a color cathode ray tube and electron gun to improve deflection aberration efficiently using magnetic material formed at the electron gun and to improve a resolution of a display screen.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 17, 2006
    Assignee: LG.Philips Displays Korea Co., Ltd.
    Inventors: Soo Keun Lee, Duck Su Kim, Jeong Geung Lee