Patents by Inventor Jun Seok Byun

Jun Seok Byun 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).

  • Method for detecting an invisible mark on a card
    Patent number: 9536162
    Abstract: The present invention relates to a method for detecting a mark that is invisible in the visible light region. Here, the invisible mark is displayed on a card using a characteristic according to which the color of light is changed by means of a refractive index difference according to media in the visible light region. According to the method for detecting the invisible mark, it may be quickly determined whether the card is a counterfeit card in an investigation. In addition, since it is unnecessary to repeatedly inspect the card to be checked using various wavelengths, the time required for determining whether the card is a counterfeit card may be reduced.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: January 3, 2017
    Assignee: Republic of Korea (National Forensic Service Director Ministry of Public Administration and Security)
    Inventors: Joong Lee, Tae-Yi Kang, Jun Seok Byun
  • DETECTION METHOD OF INVISIBLE MARK ON PLAYING CARD
    Publication number: 20130343599
    Abstract: The present invention relates to a method for detecting a mark that is invisible in the visible light region. Here, the invisible mark is displayed on a card using a characteristic according to which the color of light is changed by means of a refractive index difference according to media in the visible light region. According to the method for detecting the invisible mark, it may be quickly determined whether the card is a counterfeit card in an investigation. In addition, since it is unnecessary to repeatedly inspect the card to be checked using various wavelengths, the time required for determining whether the card is a counterfeit card may be reduced.
    Type: Application
    Filed: December 19, 2011
    Publication date: December 26, 2013
    Inventors: Joong Lee, Tae-Yi Kang, Jun Seok Byun