Patents by Inventor Yoon Tak

Yoon Tak 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).

  • Publication number: 20050100761
    Abstract: An organic electro-luminescence device and a fabricating method thereof for simplifying a structure and a manufacturing process of the device are disclosed. In the organic electro-luminescence device, an anode electrode is provided between a substrate and an organic light-emitting layer and has a large amount of holes distributed on the surface being adjacent to the organic light-emitting layer such that said holes are directly injected into the organic light-emitting layer. A cathode electrode is provided on the organic light-emitting layer.
    Type: Application
    Filed: November 9, 2004
    Publication date: May 12, 2005
    Inventors: Jin Sunwoo, Min Kang, Yoon Tak
  • Publication number: 20050078164
    Abstract: The invention relates to a barcode marking method and apparatus for an electro-luminescence display device. According to the barcode marking method and apparatus for an electro-luminescence display device of the present invention includes, an information barcode is marked on the electro-luminescence display devices by using the ink jetted from the ink-jet head while moving at least any one of the stage and the ink-jet head.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 14, 2005
    Inventors: Seung Kwon, Yoon Tak
  • Publication number: 20040168178
    Abstract: An optical pickup actuator and an optical recording and/or reproducing apparatus adopting the optical pickup actuator. The optical pickup actuator includes a bobbin in which an objective lens is mounted, and suspension wires each having one end fixed on a side of the bobbin and the other end fixed to a holder disposed on a portion of a base to allow the bobbin to move with respect to the base. A magnetic circuit is installed in the bobbin and the base including a pair of unipolar magnets positioned on the base to face two sides of the bobbin. A focusing coil is wound around the bobbin. A pair of tracking coils are wound opposite one another and next to the objective lens in the radial direction to cross over the focusing coil so as to encircle the bobbin and interact with the unipolar magnets to generate an electromagnetic force to control a tracking movement.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-tak Yang, Byung-youn Song
  • Publication number: 20040098737
    Abstract: An optical pickup actuator for driving, by a magnetic driving unit, in a focusing direction, a tracking direction, and a tilting direction, a bobbin on which an objective lens is disposed and which is movably supported by suspension wires, including at least one damping member is disposed at a position where greatest changes in the optical pickup actuator occur when driving the bobbin in the focusing direction, the tracking direction, and the tilting direction, so that a size of a second resonant peak is reduced.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 20, 2004
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Byung-Youn Song, Yoon Tak Yang