Patents by Inventor Chae-bok Lim

Chae-bok Lim 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).

  • Method and apparatus for developing screen of cathode ray tube
    Patent number: 5976739
    Abstract: A method of developing a screen of a cathode ray tube includes the steps of establishing an uniform electrostatic charge on selected areas of an inner surface of a panel with a predetermined pattern, rotating a nozzle to a predetermined angle with respect to the inner surface of a panel, and moving the rotated nozzle backwards and forwards while spraying a dry-powdered and electrically charged screen structure material on the selected areas of the inner surface of the panel.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: November 2, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Yang-hee Lee, Chae-bok Lim, Jong-ho Cho