Patents by Inventor Koonseon Oh

Koonseon Oh 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).

  • Apparatus for inspecting surface of a face plate for a cathode ray tube
    Patent number: 5305080
    Abstract: An inspection apparatus is provided to permit an inspector to easily inspect a face plate which has passed through a grinding process for flaws, an alien substance or an unground portion on the face plate surface. The apparatus includes a gate conveyor on which the face plate is conveyed. When the face plate is stopped on the gate conveyor, the sides of the face plate are engaged via padded piston rods and the gate conveyor swung open so as to permit the engaged face plate to be rotated for inspection purposes. Light sources may be positioned above and below the gate conveyor to aid in the inspection of a face plate.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: April 19, 1994
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Sangsoo Lee, Nagkeun Seong, Sangkeun Jeong, Boghyeon Yoo, Koonseon Oh, Jeongin Seo, Jaekyeong Rho