Patents by Inventor Hwan-geum Kim

Hwan-geum Kim 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 roller including a pressing pipe having a cut away portion for an image forming apparatus
    Patent number: 7505727
    Abstract: A fixing roller of an image forming apparatus includes a roller body having a pipe form. A coil assembly is mounted within the roller body and has an induction coil, and an inside and outside thereof are coated with insulators. A pressing pipe is mounted to the roller body to tightly bias the coil assembly toward an inner surface of the roller body. The pressing pipe has a cut away portion along a lengthwise direction to contract and expand in a circumferential direction.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: March 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-hyeok Jang, Hwan-geum Kim, Gyu-seob Song
  • Fixing roller for an image forming apparatus
    Publication number: 20060291923
    Abstract: A fixing roller of an image forming apparatus includes a roller body having a pipe form. A coil assembly is mounted within the roller body and has an induction coil, and an inside and outside thereof are coated with insulators. A pressing pipe is mounted to the roller body to tightly bias the coil assembly toward an inner surface of the roller body. The pressing pipe has a cut away portion along a lengthwise direction to contract and expand in a circumferential direction.
    Type: Application
    Filed: March 22, 2006
    Publication date: December 28, 2006
    Inventors: Jae-hyeok Jang, Hwan-geum Kim, Gyu-seob Song
  • Fusing device for an electrophotographic image forming apparatus
    Patent number: 7035581
    Abstract: A fusing device of an electrophotographic image forming apparatus includes a fusing unit which includes a heating portion, a fixing frame which fixes and supports the heating portion at one side, and a fusing film sliding along a circumference of the fixing frame, and a pressing roller which presses the fusing film to the heating portion to slide the fusing film. The heating portion is installed in contact with the pressing roller and forms a fusing nip portion having a predetermined width.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: April 25, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Durk-hyun Cho, Hwan-geum Kim
  • Fusing device for an electrophotographic image forming apparatus
    Publication number: 20040042826
    Abstract: A fusing device of an electrophotographic image forming apparatus includes a fusing unit which includes a heating portion, a fixing frame which fixes and supports the heating portion at one side, and a fusing film sliding along a circumference of the fixing frame, and a pressing roller which presses the fusing film to the heating portion to slide the fusing film. The heating portion is installed in contact with the pressing roller and forms a fusing nip portion having a predetermined width.
    Type: Application
    Filed: June 23, 2003
    Publication date: March 4, 2004
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Durk-Hyun Cho, Hwan-Geum Kim