Patents by Inventor Jong Woo Son

Jong Woo Son 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).

  • Selective etching of a protective layer to form a catalyst layer for an electron-emitting device
    Patent number: 6984535
    Abstract: An electron-emitting device including a protective layer that is formed on a catalyst layer to protect the catalyst layer from the deleterious environmental conditions before or during a cathode process. The present invention further includes a half etching process that is adapted to partially remove portions of the protective layer from the catalyst layer to etch the catalyst layer except carbon nano-tube growing portions. Portions of the protective layer still remain on the catalyst layer to protect the catalyst layer from the deleterious conditions from next cathode formation process.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 10, 2006
    Assignee: cDream Corporation
    Inventors: Jong Woo Son, Chul Ha Chang, Jung-Jae Kim, Koji Suzuki, Takashi Kuwahara