Patents by Inventor Won Kyu Ryu

Won Kyu Ryu 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).

  • PORTABLE DISPLAY DEVICE
    Publication number: 20120306724
    Abstract: The present invention relates to a portable display device. The display device of the present invention comprises a main unit comprising a first display unit, a sliding second display unit joined to the first display unit, whose action allows display of a separate screen or an extension of the screen of the first display portion, and a sliding component formed between the main unit and the second display unit which enables the sliding of the second display portion against the main unit.
    Type: Application
    Filed: July 24, 2009
    Publication date: December 6, 2012
    Inventors: Sang Kyu Ryu, Won Kyu Ryu, Eun Hee Ryu, Jong Kyu Ryu