Patents by Inventor Hyeon-sang Kim

Hyeon-sang 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).

  • Method of manufacturing a cathode ray tube screen
    Patent number: 5853796
    Abstract: A method for manufacturing a screen including forming a phosphor layer on an inner surface of a panel where a black matrix layer is present; applying and drying a filming composition comprising an acryl emulsion having a molecular weight of 1.5-2.5 million and a decomposition starting temperature of 200.degree.-250.degree. C. as a main component on the phosphor layer to form a film; and forming a meal layer on the film.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: December 29, 1998
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Hyeon-sang Kim, Jong-ho Oh
  • Filming composite for cathode ray tube
    Patent number: 5717032
    Abstract: A filming composition comprises an acryl emulsion having a molecular weight of 1.5.about.2.5 million and a decomposition starting temperature of 200.degree..about.250.degree. C., as a main component. The composition has a tendency to decompose at low temperature and can be completely decomposed and removed during frit sealing, without the need for separate baking or complex equipment. A screen having good characteristics can be obtained through an advantageous method.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: February 10, 1998
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Hyeon-sang Kim, Jong-ho Oh