Patents by Inventor Sang Jin Kong

Sang Jin Kong 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: 7337535
    Abstract: A hole plugging method for a printed circuit board, a hole plugging device in accordance therewith and a manufacturing method in accordance therewith where a mask for selectively exposing a via hole, a through hole and a surface pattern of the printed circuit board is positioned on the board having the via hole and the through hole to electrically connect circuit patterns formed on the surface of the board and in the board and an insulating material is plugged in the via hole by abutting and pushing the material on the surface of the board. Therefore, the insulating material can be plugged smoothly without a void, the processing is simplified by plugging the insulating material just to the height of the circuit pattern in a space between the circuit patterns and accordingly, damage to the circuit pattern can be prevented.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: March 4, 2008
    Assignee: LG Electronics Inc.
    Inventors: Sung Gue Lee, Sung Sik Cho, Yong Il Kim, Yong Soon Jang, Ho Sung Choi, Sang Jin Kong, Young Hwan Kim
  • Patent number: 7229519
    Abstract: An apparatus for burning green sheets of a plasma display panel comprises a feeding part that feeds a green sheet to a plasma display panel substrate, a heat and pressure roller that heats and compresses the green sheet and the plasma display panel substrate from above the plasma display panel substrate, and a heating module that applies heat to a contact portion between the green sheet and the plasma display panel substrate. The heat and pressure roller applies heat and pressure to the green sheet to bring the green sheet into intimate contact with the plasma display panel substrate and to remove residual solvent from the green sheet.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: June 12, 2007
    Assignee: LG Electronics, Inc.
    Inventors: Sang Jin Kong, Jin Ho Choi
  • Patent number: 6954985
    Abstract: A hole plugging method for a printed circuit board, a hole plugging device in accordance therewith and a manufacturing method in accordance therewith where a mask for selectively exposing a via hole, a through hole and a surface pattern of the printed circuit board is positioned on the board having the via hole and the through hole to electrically connect circuit patterns formed on the surface of the board and in the board and an insulating material is plugged in the via hole by abutting and pushing the material on the surface of the board. Therefore, the insulating material can be plugged smoothly without a void, the processing is simplified by plugging the insulating material just to the height of the circuit pattern in a space between the circuit patterns and accordingly, damage to the circuit pattern can be prevented.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: October 18, 2005
    Assignee: LG Electronics Inc.
    Inventors: Sung Gue Lee, Sung Sik Cho, Yong Il Kim, Yong Soon Jang, Ho Sung Choi, Sang Jin Kong, Young Hwan Kim
  • Publication number: 20040154166
    Abstract: A hole plugging method for a printed circuit board, a hole plugging device in accordance therewith and a manufacturing method in accordance therewith where a mask for selectively exposing a via hole, a through hole and a surface pattern of the printed circuit board is positioned on the board having the via hole and the through hole to electrically connect circuit patterns formed on the surface of the board and in the board and an insulating material is plugged in the via hole by abutting and pushing the material on the surface of the board. Therefore, the insulating material can be plugged smoothly without a void, the processing is simplified by plugging the insulating material just to the height of the circuit pattern in a space between the circuit patterns and accordingly, damage to the circuit pattern can be prevented.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 12, 2004
    Applicant: LG ELECTRONICS INC.
    Inventors: Sung Gue Lee, Sung Sik Cho, Yong Il Kim, Yong Soon Jang, Ho Sung Choi, Sang Jin Kong, Young Hwan Kim
  • Publication number: 20020184757
    Abstract: A hole plugging method for a printed circuit board, a hole plugging device in accordance therewith and a manufacturing method in accordance therewith where a mask for selectively exposing a via hole, a through hole and a surface pattern of the printed circuit board is positioned on the board having the via hole and the through hole to electrically connect circuit patterns formed on the surface of the board and in the board and an insulating material is plugged in the via hole by abutting and pushing the material on the surface of the board. Therefore, the insulating material can be plugged smoothly without a void, the processing is simplified by plugging the insulating material just to the height of the circuit pattern in a space between the circuit patterns and accordingly, damage to the circuit pattern can be prevented.
    Type: Application
    Filed: January 14, 2002
    Publication date: December 12, 2002
    Inventors: Sung Gue Lee, Sung Sik Cho, Yong Il Kim, Yong Soon Jang, Ho Sung Choi, Sang Jin Kong, Young Hwan Kim