Patents by Inventor Sang-heon Koo

Sang-heon Koo 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).

  • Patent number: 6334611
    Abstract: A paper discharging apparatus for a printer includes a movement path having a first movement track and a second movement track for independently guiding paper printed in an image forming unit in a printer body and means for branching the movement path and allowing the printed paper to selectively enter the first or second movement track. A first indexer is installed in the printer body, which clamps a first sheet of paper that has passed through the first movement track, and which moves to a first selected discharge tray to discharge the paper thereto. A second indexer is installed in the printer body, which clamps a second sheet of paper that has passed through the second movement track, and which moves to a second selected discharge tray to discharge the paper thereto. Means are provided for elevating the first and the second indexers, and a controller controls the driving of the elevating means and the first and the second indexers.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 1, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-heon Koo
  • Patent number: 5785435
    Abstract: A printer capable of continuously and sequentially performing the printing of a picture and a text includes a picture printing device for printing an image and a text printing device for printing text. The picture printing device includes an ink sheet and a recording head to print the image by overlaying sublimed color inks. The text printing device may take the form of an ink-jet printer including a head having nozzles for ejecting the ink by means of the pressure of bubbles. Alternatively, the text printing device may take the form of a laser printer.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: July 28, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-heon Koo
  • Patent number: 5718521
    Abstract: A printer capable of continuously and sequentially performing the printing of a picture and a text includes a picture printing device for printing an image and a text printing device for printing text. The picture printing device includes an ink sheet and a recording head to print the image by overlaying sublimed color inks. The text printing device may take the form of an ink-jet printer including a head having nozzles for ejecting the ink by means of the pressure of bubbles. Alternatively, the text printing device may take the form of a laser printer.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: February 17, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-heon Koo
  • Patent number: 5477258
    Abstract: A printing paper guiding method and apparatus for a printer whose printing head guides printing paper when the printer performs a printing operation on printing paper. The printing paper guiding apparatus includes a plate spring having a roller installed below the printing head and a shaft formed in a transverse direction and in the center of the printing head so that the printing head can be inclined about the shaft, thereby to enable the printing paper to be smoothly pushed onto a drum and prevent the printing paper from being separated from the drum. As a result, the entire surface of the printing paper can be printed and a poor printing quality can be prevented.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: December 19, 1995
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Heon Koo