Patents by Inventor Tae-ken Oh

Tae-ken Oh 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).

  • Fusing device of electrophotographic image forming apparatus
    Patent number: 6665504
    Abstract: A fusing device of an electrophotographic image forming apparatus includes a tubular internal pipe sealed at its ends to maintain a predetermined internal pressure to accommodate a predetermined amount of a working fluid in its inner space, a heater installed to wrap the internal pipe to generate heat, a power supply unit electrically connected to the heater to supply an external power to the heater, a cylindrical roller installed to wrap the heater, and end caps installed at both ends of the cylindrical roller. Each of the end caps includes a large-diameter portion in which an electrode electrically connected to the power supply unit is to be installed, and a small-diameter portion fittingly fixed to the end of the cylindrical roller by a locking unit. The fusing device has the end caps at both ends of a fusing roller to supply securely electricity from the power supply unit to the heater supplying heat to the fusing roller, thereby providing a maximized durability and operating safety to the fusing roller.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: December 16, 2003
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Kyung-woo Lee, Tae-ken Oh
  • Fusing device of electrophotographic image forming apparatus
    Publication number: 20030091374
    Abstract: A fusing device of an electrophotographic image forming apparatus includes a tubular internal pipe sealed at its ends to maintain a predetermined internal pressure to accommodate a predetermined amount of a working fluid in its inner space, a heater installed to wrap the internal pipe to generate heat, a power supply unit electrically connected to the heater to supply an external power to the heater, a cylindrical roller installed to wrap the heater, and end caps installed at both ends of the cylindrical roller. Each of the end caps includes a large-diameter portion in which an electrode electrically connected to the power supply unit is to be installed, and a small-diameter portion fittingly fixed to the end of the cylindrical roller by a locking unit. The fusing device has the end caps at both ends of a fusing roller to supply securely electricity from the power supply unit to the heater supplying heat to the fusing roller, thereby providing a maximized durability and operating safety to the fusing roller.
    Type: Application
    Filed: September 24, 2002
    Publication date: May 15, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung-Woo Lee, Tae-ken Oh