Patents by Inventor Joong-Kwang Shin

Joong-Kwang Shin 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).

  • Controlling apparatus for developing roller, image forming device having the same, and developer controlling method thereof
    Patent number: 7406274
    Abstract: An image forming apparatus having a developer controlling apparatus for a developing roller is provided to uniformly control an amount of developer deposited on the developing roller and a developer controlling method thereof. The apparatus includes a sensing part having a first sensor which senses a conductivity of a liquid developer and a second sensor which senses a density of the liquid developer. A control part controls a voltage applied to the developing roller and/or a deposit roller according to the conductivity and the density sensed by the sensing part.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: July 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Kwang Shin, Yu-Man Kim, Hae-Ree Joo
  • Controlling apparatus for developing roller, image forming device having the same, and developer controlling method thereof
    Publication number: 20060153585
    Abstract: A image forming apparatus having a developer controlling apparatus for a developing roller is provided to uniformly control an amount of developer deposited on the developing roller and a developer controlling method thereof. The apparatus includes a sensing part having a first sensor which senses a conductivity of a liquid developer and a second sensor which senses a density of the liquid developer. A control part controls a voltage applied to the developing roller and/or a deposit roller according to the conductivity and the density sensed by the sensing part.
    Type: Application
    Filed: December 2, 2005
    Publication date: July 13, 2006
    Inventors: Joong-Kwang Shin, Yu-Man Kim, Hae-Ree Joo