Patents by Inventor Ja-Yong Han

Ja-Yong Han 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).

  • UV CURABLE PHOTOCHROMIC COMPOSITION AND PRODUCTS FORMED BY USING THE SAME
    Publication number: 20100213422
    Abstract: The present invention relates to a UV curable photochromic composition comprising a photochromic dye and an acrylate-based prepolymer having a polyol structure in which an acrylate-based functional group is introduced by using an iso-cyanate-based compound having two or more isocyanate functional groups as a linker, and to products formed by using the same.
    Type: Application
    Filed: October 9, 2008
    Publication date: August 26, 2010
    Inventors: Jee-Seon Kim, Hye-Min Kim, Ja-Yong Han