Patents by Inventor Bryong-Il Lee

Bryong-Il Lee 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).

  • Composition for positive type photoresist and positive type photoresist film manufactured thereby
    Patent number: 8197934
    Abstract: Disclosed are a composition for positive type photoresist and a positive type photoresist film manufactured thereby. The composition comprises an alkali soluble resin, a photosensitive compound, a thermo-curable cross linking agent, a sensitivity enhancer and a solvent. The photoresist film has a supporting film and a photoresist layer formed on the supporting film, wherein the photoresist layer comprises the alkali soluble resin, the photosensitive compound, the thermo-curable cross linking agent and the sensitivity enhancer.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: June 12, 2012
    Assignee: Kolon Industries, Inc.
    Inventors: Byoung-Kee Kim, Se-Hyung Park, Bryong-Il Lee, Jong-Min Park, Seog-Jeong Song
  • Composition For Positive Type Photoresist and Positive Type Photoresist Film Manufactured Thereby
    Publication number: 20090274900
    Abstract: Disclosed are a composition for positive type photoresist and a positive type photoresist film manufactured thereby. The composition comprises an alkali soluble resin, a photosensitive compound, a thermo-curable cross linking agent, a sensitivity enhancer and a solvent. The photoresist film has a supporting film and a photoresist layer formed on the supporting film, wherein the photoresist layer comprises the alkali soluble resin, the photosensitive compound, the thermo-curable cross linking agent and the sensitivity enhancer.
    Type: Application
    Filed: April 6, 2007
    Publication date: November 5, 2009
    Applicant: Kolon Industries, Inc.
    Inventors: Byoung-Kee Kim, Se-Hyung Park, Bryong-Il Lee, Jong-Min Park, Seog-Jeong Song