Patents by Inventor Ichull Ihm

Ichull Ihm 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).

  • Phosphor slurry composition for color Braun tubes
    Patent number: 5310504
    Abstract: The present invention discloses a phosphor slurry composition for color Braun tubes comprising deionized water, phosphor powder, polyvinyl alcohol, sodium dichromate, ethyl silicate and zinc sulfate. A color Braun tube manufactured using a phosphor slurry composition of the present invention shows an excellent mirror reflection effect and high luminescent brightness.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: May 10, 1994
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventors: Ikchull Ihm, Minho Kim, Ichull Ihm