Patents by Inventor Young-jo Kwon

Young-jo Kwon 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).

  • Detachable toner cartridge and image forming apparatus including the same
    Patent number: 9188950
    Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-min Yoon, Se-il Kwon, Young-jo Kwon
  • Detachable toner cartridge and image forming apparatus including the same
    Patent number: 8385772
    Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-min Yoon, Se-il Kwon, Young-jo Kwon
  • DETACHABLE TONER CARTRIDGE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    Publication number: 20110052266
    Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.
    Type: Application
    Filed: January 28, 2010
    Publication date: March 3, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Young-min Yoon, Se-il Kwon, Young-jo Kwon