Patents by Inventor Yung-Fan Cheng

Yung-Fan Cheng 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).

  • Conjugated compounds containing triarylamine structural elements, and their use
    Publication number: 20070077450
    Abstract: The present invention discloses conjugated compounds containing triarylamine structural elements with a general formula ABm, wherein A is aryl moiety with or without hetero atom(s), m is integers from 2 to 4, and B is as following: wherein Ar is aryl moiety. Moreover, the conjugated compounds of the invention are used as hole transport material, hole injection material and/or as host material in organic electroluminescence devices and/or phosphorescence devices, and as hole transport material in solar cells.
    Type: Application
    Filed: October 4, 2005
    Publication date: April 5, 2007
    Inventors: Feng-wen Yen, Chao-Yu Chiu, Cheng-Hao Chang, Chin-Ming Teng, Feng-Ying Wang, Yung-Fan Cheng