Patents by Inventor Young Hag Koh

Young Hag Koh 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).

  • Surface treated aluminum nitride and fabricating method thereof
    Patent number: 6423373
    Abstract: The present invention relates to a surface-treated aluminum nitride and fabrication method thereof. The flexural strength of a surface-treated aluminum nitride at a high temperature is improved by restraining an oxidation behavior. The restraint of oxidation behavior is due to a silica layer formed on the surface-treated aluminum nitride by reaction of a source of silicon with an atmosphere gas.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: July 23, 2002
    Inventors: Hyoun Ee Kim, Young Hag Koh