Patents by Inventor Hochan An

Hochan An 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 apparatus having two rotatable and foldable units and hinge device used for the same
    Publication number: 20050236869
    Abstract: A portable apparatus of the present invention comprises a first unit, a second unit, and a hinge device that is coupled to the first and second units such that the units can be moved to be in contact with or spaced apart from each other and allows relative sliding movement between the first and second units within a certain range. The hinge device exerts a force in a direction in which the first and second units are spaced apart from each other, through the relative sliding movement by a predetermined distance between the two units in the complete contact state of the first and second units.
    Type: Application
    Filed: March 18, 2005
    Publication date: October 27, 2005
    Inventors: Sung-Hyun Ka, Young-Ju Lee, Hochan Song