Patents by Inventor Hoonki Hong

Hoonki Hong 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 device
    Patent number: 8648384
    Abstract: A light emitting device is disclosed. In the light emitting device, the structure of a barrier layer of an active layer is changed, and a band gap energy of an intermediate layer is varied, thereby improving hole injection efficiency of the active layer and thus light emission efficiency.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: February 11, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jongho Na, Hoonki Hong, Hyunkee Lee
  • LIGHT EMITTING DEVICE
    Publication number: 20120145993
    Abstract: A light emitting device is disclosed. In the light emitting device, the structure of a barrier layer of an active layer is changed, and a band gap energy of an intermediate layer is varied, thereby improving hole injection efficiency of the active layer and thus light emission efficiency.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 14, 2012
    Inventors: Jongho NA, Hoonki Hong, Hyunkee Lee