Patents by Inventor Myoung-Sub Sim

Myoung-Sub Sim 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).

  • Fusing unit for a copy machine
    Patent number: 4937631
    Abstract: An improved heating roller type fusing unit for a copy machine is disclosed in which a guide plate and a guide roller are added to the existing fusing unit consisting of a heating roller and a pressing roller. The guide plate performs the function of conveying the paper to the nip portion, while the guide roller performs the function of applying a lateral tension on the paper before the paper enters into the nip portion, with the result that the nip portion has only to carry out the fusing function.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: June 26, 1990
    Assignee: Sindo Ricoh Co., Ltd.
    Inventors: Jae-Hwan Kim, Myoung-Sub Sim