Patents by Inventor Won Jin Cung

Won Jin Cung 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).

  • PHOTOACTIVE COMPOUND AND PHOTOSENSITIVE RESIN COMPOSITION CONTAINING THE SAME
    Publication number: 20110318692
    Abstract: The present invention relates to a photoactive compound of a novel structure represented by Chemical Formula 1 below In Chemical Formula 1, R1 and R2, R3, and A are as defined in the specification, and a photosensitive resin composition comprising the same. The photoactive compound of the present invention comprises a nitro group and a phosphonate structure and thus exhibits excellent sensitivity through efficient absorption for UV light, excellent compatibility between the photoactive compound and the alkali-soluble binder resin, and an improved solubility of the photosensitive resin composition. Furthermore, the photosensitive resin composition of the present invention has excellent residual film thickness and mechanical strength characteristics and heat-resistant, chemical-resistant, and development-resistant properties.
    Type: Application
    Filed: February 12, 2010
    Publication date: December 29, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Chang Ho Cho, Sung Hyun Kim, Raisa Kharbash, Keon Woo Lee, Dong Kung Oh, Won Jin Cung, Sang Kyu Kwak, Chang Soon Lee