Patents by Inventor Yun-kyu Sim

Yun-kyu 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).

  • Developing unit and image forming apparatus having the same
    Patent number: 7873305
    Abstract: A developing unit of an image forming apparatus includes a developer cartridge detachably mounted on the developing unit, a developing case in which a developing member and a first supply member are provided, a developer supply passage to supply a developer stored in the developer cartridge to the developing case, and a developer supplement unit mounted in a portion connecting the developing case and the developer supply passage, to agitate the developer supplied through the developer supply passage and to supply the agitated developer to the developing case.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: January 18, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ji-won Moon, Hyun-cheol Lee, Yun-kyu Sim
  • DEVELOPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME
    Publication number: 20080292363
    Abstract: A developing unit of an image forming apparatus includes a developer cartridge detachably mounted on the developing unit, a developing case in which a developing member and a first supply member are provided, a developer supply passage to supply a developer stored in the developer cartridge to the developing case, and a developer supplement unit mounted in a portion connecting the developing case and the developer supply passage, to agitate the developer supplied through the developer supply passage and to supply the agitated developer to the developing case.
    Type: Application
    Filed: October 18, 2007
    Publication date: November 27, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-won MOON, Hyun-cheol LEE, Yun-kyu SIM