Patents by Inventor Nam-Uk Choi

Nam-Uk Choi 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).

  • Publication number: 20090092931
    Abstract: A method of forming a blocking pattern includes forming a preliminary blocking layer on first and second regions of a substrate, the preliminary blocking layer being formed of a photosensitive composition including a siloxane polymer, a cross-linking agent, a photoacid generator, and a thermal acid generator, selectively exposing to light a first portion of the preliminary blocking layer, the first portion of the preliminary blocking layer being formed on the first region of the substrate, such that a cross-linked pattern is formed on the first region of the substrate, and removing a second portion of the preliminary blocking layer, the second portion of the preliminary blocking layer being formed on the second region of the substrate.
    Type: Application
    Filed: August 12, 2008
    Publication date: April 9, 2009
    Inventors: Kyong-Rim Kang, Young-Ho Kim, Jae-Hyun Kim, Sun-Yul Ahn, Nam-Uk Choi