Patents by Inventor Ya Ian Yang

Ya Ian Yang 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 with patterned current diffusion layer
    Patent number: 8541789
    Abstract: Disclosed is a light-emitting device including a permanent substrate, an adhesive layer on the permanent substrate, a current diffusion layer on the adhesive layer, and a semiconductor stack layer on the current diffusion layer. The current diffusion layer has an etched portion and an unetched portion, wherein the etched and unetched portions have a horizontal height difference. The horizontal height difference and the current diffusion layer thickness have a ratio of 20:100 to 70:100.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: September 24, 2013
    Assignee: Epistar Corporation
    Inventors: Chiu Lin Yao, Ya Ian Yang
  • LIGHT-EMITTING DEVICES AND METHODS FOR MANUFACTURING THE SAME
    Publication number: 20110121287
    Abstract: Disclosed is a light-emitting device including a permanent substrate, an adhesive layer on the permanent substrate, a current diffusion layer on the adhesive layer, and a semiconductor stack layer on the current diffusion layer. The current diffusion layer has an etched portion and an unetched portion, wherein the etched and unetched portions have a horizontal height difference. The horizontal height difference and the current diffusion layer thickness have a ratio of 20:100 to 70:100.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Inventors: Chiu Lin Yao, Ya Ian Yang