Patents by Inventor Sunhaeng Lee

Sunhaeng Lee 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).

  • Patent number: 5227692
    Abstract: A convergence correcting magnet assembly means for adjusting the position of plural correcting magnets closer to or further from electron beams in a cathode ray tube, preferably comprising four bipolar magnets arranged in two offset pairs, one pair oriented in the lateral direction and a second pair in the longitudinal direction; the pairs of magnets permit laterally and longitudinally deviating beams to be adjusted or converged toward the center beam. Preferably, each of the bipolar magnets is installed in a clearance space having a spring-loaded or elastic member and an adjusting member, so that the intensities of each magnet can be adjusted by individually moving each magnet closer to or further from the beams under spring tension. Interactions between the magnets are minimized by isolating the magnets from one another.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: July 13, 1993
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventor: Sunhaeng Lee
  • Patent number: 5124613
    Abstract: A deflection yoke capable of damping the leaking magnetic fields leaking to the front of the screen is disclosed. The characteristic feature of the deflection yoke includes: two pairs of ferrite cores opposingly facingly disposed on the flange portion of the beam outgoing side of the deflection yoke; and coils extended from the horizontal deflection coil and wound on the ferrite cores in such a manner as to offset all the magnetic fields other than the main horizontal deflection magnetic field.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: June 23, 1992
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventors: Wonseok Park, Sungbae Chung, Jaeho Kang, Woongseon Choi, Jongpil Jin, Sunhaeng Lee, Hyunseung Yang, Hyunjeong Shin