Patents by Inventor Shinich Hisatomi

Shinich Hisatomi 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).

  • Image forming apparatus and method of controlling transfer power thereof
    Patent number: 8867940
    Abstract: An image forming apparatus including a transfer unit that transfers onto a transfer medium an image that is formed on a photosensitive medium; a power supply unit that provides a transfer power to the transfer unit; and a transfer power control unit that controls the transfer power that is provided to the transfer unit by the power supply unit. The transfer power control unit sets as a target voltage an output voltage of the power supply unit that is measured by supplying an initial transfer current to the transfer unit in a predetermined certain period before an image is transferred onto the transfer medium and controls the power supply unit to apply the set target voltage to the transfer unit while an image is being transferred onto the transfer medium.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-woo Lee, Shinich Hisatomi, Byung-kyu Kim
  • IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING TRANSFER POWER THEREOF
    Publication number: 20120177391
    Abstract: An image forming apparatus including a transfer unit that transfers onto a transfer medium an image that is formed on a photosensitive medium; a power supply unit that provides a transfer power to the transfer unit; and a transfer power control unit that controls the transfer power that is provided to the transfer unit by the power supply unit. The transfer power control unit sets as a target voltage an output voltage of the power supply unit that is measured by supplying an initial transfer current to the transfer unit in a predetermined certain period before an image is transferred onto the transfer medium and controls the power supply unit to apply the set target voltage to the transfer unit while an image is being transferred onto the transfer medium.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-woo Lee, Shinich Hisatomi, Byung-kyu Kim