Patents by Inventor Byeongkwan An

Byeongkwan An 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).

  • Branched alpha-cyanostilbene fluorophores
    Patent number: 7592475
    Abstract: A branched ?-cyanostilbene fluorescent materials with a new structure useful to the organic electroluminescence display (OELD), which includes the organic substance in the state of powder, liquid and film with the stilbene core structure and the terminal branched phenyl structure. The fluorescent materials of the invention exhibits the high luminescent efficiency and is capable of tuning the fluorescent colors of red, green and blue according to the core structure in the molecular, i.e., the structure of stilbene radical, particularly it exhibits the higher luminescent efficiency in the state of solid more than solution.
    Type: Grant
    Filed: June 29, 2002
    Date of Patent: September 22, 2009
    Assignees: Dongwoo Fine-Chem Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sooyoung Park, Soonki Kwon, Byeongkwan An
  • Novel branched alpha-cyanostilbene fluorophores
    Publication number: 20090014686
    Abstract: A branched ?-cyanostilbene fluorescent materials with a new structure useful to the organic electroluminescence display (OELD), which includes the organic substance in the state of powder, liquid and film with the stilbene core structure and the terminal branched phenyl structure. The fluorescent materials of the invention exhibits the high luminescent efficiency and is capable of tuning the fluorescent colors of red, green and blue according to the core structure in the molecular, i.e., the structure of stilbene radical, particularly it exhibits the higher luminescent efficiency in the state of solid more than solution.
    Type: Application
    Filed: September 11, 2008
    Publication date: January 15, 2009
    Inventors: Sooyoung Park, Soonki Kwon, Byeongkwan An
  • Novel branched alpha-cyanostilbene fluorophores
    Publication number: 20070149799
    Abstract: A branched ?-cyanostilbene fluorescent materials with a new structure useful to the organic electroluminescence display (OELD), which includes the organic substance in the state of powder, liquid and film with the stilbene core structure and the terminal branched phenyl structure. The fluorescent materials of the invention exhibits the high luminescent efficiency and is capable of tuning the fluorescent colors of red, green and blue according to the core structure in the molecular, i.e., the structure of stilbene radical, particularly it exhibits the higher luminescent efficiency in the state of solid more than solution.
    Type: Application
    Filed: June 29, 2002
    Publication date: June 28, 2007
    Inventors: Sooyoung Park, Soonki Kwon, Byeongkwan An