Patents by Inventor Young-kyun Mok

Young-kyun Mok 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 of forming a frit seal between a stem and a neck of a cathode ray tube during manufacturing of a cathode ray tube
    Patent number: 6139388
    Abstract: A method of manufacturing a cathode ray tube comprising the steps of providing a stem with a flange having an outer diameter larger than an inner diameter of a bottom end of a neck and smaller than or identical with an outer diameter of the bottom end of the neck, applying a liquefied frit glass onto an upper portion of the flange, hardening the liquefied frit glass applied on the upper portion of the flange, mounting an electron gun onto the stem, fitting the stem into the inside of the neck such that the upper portion of the flange applied with the frit glass contacts a bottom end of the neck, and providing a frit seal between the upper portion of the flange and the bottom end of the neck by heat-treating the frit glass between them.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: October 31, 2000
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Young-kyun Mok, Jae-kon Lee, Jong-koo Park