Patents by Inventor Jong Man CHOI

Jong Man CHOI 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 and image forming apparatus including the same
    Patent number: 9063495
    Abstract: A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to apply pressure to the recording medium, the fusing unit fusing the image to the recording medium by applying heat and pressure to the recording medium, a driving unit to supply rotational force to the pressurizing member, and a power supply to supply power to the heating member and the driving unit, wherein the heating regions have different heating values per unit area. The image forming apparatus prevents overheating of a paper-contact heating region without idling the fusing unit in order to radiate heat accumulated in the paper-contact heating region.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 23, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SANG-A FRONTEC
    Inventors: Jun O Kim, Dae Hwan Kim, Ji Hong Jung, Seung Oh Ko, Young Dae Ko, Jin Han Kim, Jong Man Choi
  • FUSING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    Publication number: 20140037347
    Abstract: A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to apply pressure to the recording medium, the fusing unit fusing the image to the recording medium by applying heat and pressure to the recording medium, a driving unit to supply rotational force to the pressurizing member, and a power supply to supply power to the heating member and the driving unit, wherein the heating regions have different heating values per unit area. The image forming apparatus prevents overheating of a paper-contact heating region without idling the fusing unit in order to radiate heat accumulated in the paper-contact heating region.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 6, 2014
    Applicants: SANG-A FRONTEC, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun O KIM, Dae Hwan KIM, Ji Hong JUNG, Seung Oh KO, Young Dae KO, Jin Han KIM, Jong Man CHOI