Patents by Inventor Jin Gue Ko

Jin Gue Ko 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).

  • Fixing unit with a pressure releasing member and image forming apparatus having the same
    Patent number: 9116477
    Abstract: A fixing unit which may be disposed in an image forming apparatus includes a heating roller, at least one pressure roller being in pressure contact with the heating roller to form a nip together with the heating roller, and a pressure releasing member partially restricting application of pressure to the nip. The nip includes an effective fixing section used for fixing. The pressure releasing member includes a pair of pressure releasing parts inserted into sections of the nip other than the effective fixing section, a connection part connecting the pair of pressure releasing parts, and guide parts extending from the connection part in the same direction as the pair of pressure releasing parts. The pressure releasing member prevents deformation of a portion of an elastic layer formed on the heating roller which corresponds to the effective fixing section.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Kang, Jin Gue Ko, Hyun Joon Keum, Seung Jun Lee
  • FIXING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME
    Publication number: 20140133872
    Abstract: A fixing unit which may be disposed in an image forming includes a heating roller, at least one pressure roller being in pressure contact with the heating roller to form a nip together with the heating roller, and a pressure releasing member partially restricting application of pressure to the nip. The nip includes an effective fixing section used for fixing. The pressure releasing member includes a pair of pressure releasing parts inserted into sections of the nip other than the effective fixing section, a connection part connecting the pair of pressure releasing parts, and guide parts extending from the connection part in the same direction as the pair of pressure releasing parts. The pressure releasing member prevents deformation of a portion of an elastic layer formed on the heating roller which corresponds to the effective fixing section.
    Type: Application
    Filed: December 20, 2012
    Publication date: May 15, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo KANG, Jin Gue Ko, Hyun Joon Keum, Seung Jun Lee