Patents by Inventor Myung Cheol Yoo

Myung Cheol Yoo 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).

  • Diode having high brightness and method thereof
    Publication number: 20030015713
    Abstract: A light emitting diode includes a transparent substrate and a GaN buffer layer on the transparent substrate. An n-GaN layer is formed on the buffer layer. An active layer is formed on the n-GaN layer. A p-GaN layer is formed on the active layer. A p-electrode is formed on the p-GaN layer and an n-electrode is formed on the n-GaN layer. A reflective layer is formed on a second side of the transparent substrate. Also, a cladding layer of AlGaN is between the p-GaN layer and the active layer.
    Type: Application
    Filed: July 17, 2001
    Publication date: January 23, 2003
    Inventor: Myung Cheol Yoo