Patents by Inventor Jung Y. Seo

Jung Y. Seo 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: 5471186
    Abstract: A magnetic pencil for moving semiconductor devices is disclosed, which includes a tubular housing provided with two pin holes; a hollow push rod inserted into the housing, and having guide slots at positions corresponding to the pin holes of the housing, with its upper end being closed; an insertion rod inserted into the hollow push rod, with a magnet attached on the lower tip thereof, and with screw holes provided at positions corresponding to the guide slots; and a spring fitted between the upper tip of the insertion rod and the closed upper end of the push rod. In the assembled state, guide pins are provided between the holes of the housing and the screw holes of the insertion rod through said guide slots, respectively. When the magnetic pencil is positioned uprightly by gripping with the fingers of an operator, a semiconductor device is attached to the magnet slightly projected from the lower tip of the pencil.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: November 28, 1995
    Assignee: Goldstar Electron Co., Ltd.
    Inventor: Jung Y. Seo
  • Patent number: 5469322
    Abstract: A carbon brush for discharging static electricity for protecting semiconductor devices from damage by the discharge of static electricity from the semiconductor devices. A plurality of carbon wires are attached to a brush securing bar in a suspending manner. Static electricity accumulated on semiconductor devices during various operations may be discharged through the brush securing bar to ground potential by coming into contact with the carbon wires.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: November 21, 1995
    Assignee: Goldstar Electron Co., Ltd.
    Inventor: Jung Y. Seo