Patents by Inventor Yongchan Ahn

Yongchan Ahn 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).

  • ILLUMINATED DISPLAY DEVICE CASE COMPRISING AN INTEGRATED OPTICAL FILM
    Publication number: 20150043084
    Abstract: for receiving an illuminated display device such as a tablet are described. The cases comprise a (e.g. light-collimating) optical film integrated with the case. The illuminated display device is intended to be operated while contained within (rather than being removed from) the case. The illuminated display surface can be viewed through the (e.g. light-collimating) optical film when an illuminated display device is provided within the case.
    Type: Application
    Filed: January 4, 2013
    Publication date: February 12, 2015
    Inventors: Thomas M. Snyder, Michelle L. Toy, Jeong-Wan Kim, Yongchan Ahn, You-Jung Oh, Edward L. Weaver, II, Patrick E. Bisek
  • TWO DIMENSIONAL LIGHT CONTROL FILM
    Publication number: 20080186558
    Abstract: According to the invention, a light control film has a first matrix section comprising a polymer material which is at least partially opaque and has a film-like shape. Within this film are a plurality of second sections, which are of a pillar type, and are formed completely through a thickness direction of the film. In a second embodiment of the invention, a light control film has a first matrix section comprising a polymer material and having a film-like shape. Within this film are a plurality of second sections, which are at least partially opaque and are of a pillar type formed completely through a thickness direction of the film.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 7, 2008
    Inventors: Jong-Seo Lee, Yongchan Ahn, Margaret M. Vogel-Martin, Gary E. Gaides