Patents by Inventor Ma Liping

Ma Liping 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).

  • Light-emitting devices comprising emissive layer
    Patent number: 9614162
    Abstract: Light-emitting devices comprising an fluorescent emissive layer, and three different phosphorescent emissive layers are described herein.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 4, 2017
    Assignee: Nitto Denko Corporation
    Inventors: Ma Liping, Shijun Zheng, David T. Sisk
  • LIGHT-EMITTING DEVICES COMPRISING EMISSIVE LAYER
    Publication number: 20140167014
    Abstract: Light-emitting devices comprising an fluorescent emissive layer, and three different phosphorescent emissive layers are described herein.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicant: Nitto Denko Corporation
    Inventors: Ma Liping, Shijun Zheng, David T. Sisk