Patents by Inventor You-Rark Choi

You-Rark Choi 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).

  • Laser-guided underwater wall climbing robot for reactor pressure vessel inspection
    Patent number: 5809099
    Abstract: An apparatus for inspection of a reactor pressure vessel uses a laser driven type underwater wall climbing robot guided by a laser pointer. The inspection apparatus uses a small and light underwater wall climbing robot for the quick and adequate inspection of weld lines of a reactor pressure vessel. Position control methods are provided for the stable guidance of the robot to desired three dimensional inspection positions on the reactor pressure vessel.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 15, 1998
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Jae-Hee Kim, Heung-Seop Eom, Ko-Ryuh Kim, Jae-Cheol Lee, You-Rark Choi