Patents by Inventor Do Lee-Mi

Do Lee-Mi 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).

  • Organic electroluminescent device and preparation thereof
    Publication number: 20020086181
    Abstract: In the organic electrolumineScenCe(EL) device containing a bis-condensed derivative of 4-(dicyanomethylene)-2-methyl-6- (para-(dimethylamineostyryl)-4H-pyran, and the preparation thereof, the inventive organic electroluminescence device has a high luminescent efficiency and color coordinates based on a high purity, and is further simple in a synthesis and is prominent in a thermal stability, to thereby providing great merits to a mass production of the organic electroluminescence device.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 4, 2002
    Inventors: Do Lee-Mi, Jeong Ik Lee, Hye Yong Chu, Seong Hyun Kim, Tae Hyoung Zyung, Hyo Young Lee, Hong-Ku Shim, Byung-Jun Jung, Chong-Box Yoon