Patents by Inventor Yoo Dae HAN

Yoo Dae HAN 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 diode having strain-enhanced well layer
    Patent number: 9041032
    Abstract: An exemplary embodiment of the present invention includes a light emitting diode including a strain-enhanced well layer. The light emitting diode includes an n-contact layer, an active layer having a barrier layer and a well layer, a p-contact layer, and a strain-enhancing layer configured to enhance a strain applied to the well layer.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: May 26, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Joo Won Choi, Yoo Dae Han, Jeong Hun Heo
  • LIGHT EMITTING DIODE HAVING STRAIN-ENHANCED WELL LAYER
    Publication number: 20130134386
    Abstract: An exemplary embodiment of the present invention includes a light emitting diode including a strain-enhanced well layer. The light emitting diode includes an n-contact layer, an active layer having a barrier layer and a well layer, a p-contact layer, and a strain-enhancing layer configured to enhance a strain applied to the well layer.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 30, 2013
    Applicant: SEOUL OPTO DEVICE CO., LTD.
    Inventors: Joo Won CHOI, Yoo Dae HAN, Jeong Hun HEO