Patents by Inventor Youn Sihn Kim

Youn Sihn Kim 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).

  • Optical film stack with retardance layer having in-plane retardance of greater than 2.0 microns
    Patent number: 10114162
    Abstract: Optical film stacks are disclosed. The optical film stacks can include a first reflective polarizer, a second reflective polarizer, and a retardance layer disposed between the first reflective polarizer and the second reflective polarizer.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: October 30, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kenneth A. Epstein, Adam D. Haag, Seo-Hern Lee, Youn Sihn Kim, Myeong-Kyun Kang
  • Optical Film Stack
    Publication number: 20130335823
    Abstract: Optical film stacks are disclosed. The optical film stacks can include a first reflective polarizer, a second reflective polarizer, and a retardance layer disposed between the first reflective polarizer and the second reflective polarizer.
    Type: Application
    Filed: January 13, 2012
    Publication date: December 19, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kenneth A. Epstein, Adam D. Haag, Seo-Hern Lee, Youn Sihn Kim, Myeong-Kyun Kang