Patents by Inventor Yinkui Li

Yinkui Li 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 materials and organic electroluminescent apparatuses using the same
    Patent number: 9412951
    Abstract: Organic materials and organic electroluminescent apparatuses using the same are provided. The structural general formula of the materials is shown below, wherein Ar is selected from residues of C6-C30 fused-ring aromatic hydrocarbons, Ar1 and Ar2 are each independently selected from the group consisting of hydrogen, C6-C24 aryl, and C6-C24 heterocyclic aryl, and n is an integer selected from 2 and 3. The present organic materials can be used as electron transport layers in the organic electroluminescent apparatuses.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 9, 2016
    Assignees: BEIJING VISIONOX TECHNOLOGY CO., LTD., KUNSHAN VISIONOX DISPLAY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Yong Qiu, Yinkui Li, Jing Xie
  • Dinaphthyl ethylene derivativce, process for preparing it, film prepared from it, and OLED including the film
    Patent number: 8872422
    Abstract: The present invention relates to a dinaphthyl ethylene derivative of formula (I), a process for preparing it, a film prepared from it useful in the manufacture of an organic light emitting device (OLED), an OLED including the film, and the use of the dinaphthyl ethylene derivative in the manufacture of an OLED. Wherein R1 to R16 are defined as in the specification.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: October 28, 2014
    Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.
    Inventors: Yong Qiu, Han Chen, Yinkui Li
  • ORGANIC MATERIALS AND ORGANIC ELECTROLUMINESCENT APPARATUSES USING THE SAME
    Publication number: 20130087771
    Abstract: Organic materials and organic electroluminescent apparatuses using the same are provided. The structural general formula of the materials is shown below, wherein Ar is selected from residues of C6-C30 fused-ring aromatic hydrocarbons, Ar1 and Ar2 are each independently selected from the group consisting of hydrogen, C6-C24 aryl, and C6-C24 heterocyclic aryl, and n is an integer selected from 2 and 3. The present organic materials can be used as electron transport layers in the organic electroluminescent apparatuses.
    Type: Application
    Filed: December 30, 2009
    Publication date: April 11, 2013
    Applicants: BEIJING VISIONOX TECHNOLOGY CO., LTD, TSINGHUA UNIVERSITY, KUNSHAN VISIONOX DISPLAY CO., LTD.
    Inventors: Yong Qiu, Yinkui Li, Jing Xie
  • Dinaphthyl ethylene derivativce, process for preparing it, film prepared from it, and OLED including the film
    Publication number: 20080220286
    Abstract: The present invention relates to a dinaphthyl ethylene derivative of formula (I), a process for preparing it, a film prepared from it useful in the manufacure of an organic light emitting device (OLED), an OLED including the film, and the use of the dinaphthyl ethylene derivative in the manufacture of an OLED. Wherein R1 to R16 are defined as in the specification.
    Type: Application
    Filed: January 30, 2008
    Publication date: September 11, 2008
    Applicants: Tsinghua University, Beijing Visionox Technology Co., LTD
    Inventors: Yong Qiu, Han Chen, Yinkui Li