Patents by Inventor Ki-Son Chang

Ki-Son Chang 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).

  • Color video printer for double side printing
    Patent number: 5550572
    Abstract: A color video printer for printing onto both sides of a printing paper includes several guide rollers positioned on the circumference of a platen roller and an ink ribbon supplying unit. A thermal recording head is selectively contacted with or separated from the platen roller by the operation of a cam, and a slider is operated by the cam. In the slider, cam grooves are formed so as to operate a paper ejecting guide and a re-feed paper roller by its reciprocating motion.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: August 27, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Son Chang, Moon-Bae Park, Dong-Hwan Kang