Patents by Inventor Byeongseok Oh

Byeongseok 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).

  • Copy-protected optical recording medium and a method for manufacturing thereof
    Patent number: 7200086
    Abstract: A copy-protected optical recording medium and a method for manufacturing thereof is provided, wherein the medium has at least two auxiliary sections for confusing control of a copying machine.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: April 3, 2007
    Assignee: Settec Inc.
    Inventors: Heung-Chan Seung, Byeongseok Oh
  • Copy-protected optical recording medium and a method for manufacturing thereof
    Publication number: 20040196764
    Abstract: A copy-protected optical recording medium and a method for manufacturing thereof is provided, wherein the medium has at least two auxiliary sections for confusing control of a copying machine.
    Type: Application
    Filed: May 26, 2004
    Publication date: October 7, 2004
    Inventors: Heung-Chan Seung, Byeongseok Oh