Patents by Inventor Jin Dong Cheong

Jin Dong Cheong 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).

  • Group of winding electrodes
    Patent number: 5932370
    Abstract: A cell having a separator with pores prevents short-circuiting of the anode and cathode while increasing the internal space of the cell, increasing the injection volume of electrolyte, and decreasing internal gas pressures for longer durability.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: August 3, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jin Dong Cheong, Jong Wook Lee, Sung Suk Chae
  • Separator for jelly-roll type electrode
    Patent number: 5888667
    Abstract: The unnecessary portion of the separator which prevents the short-circuit between the cathode and the anode In the center of a cylindrical cell is cut off using cutting apparatus or laser beam to increase the inner space of the cell and the electrolyte, and to have higher cell capacity and lower inner pressure of the can while producing gas.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: March 30, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jin Dong Cheong, Jong Wook Lee, Byoung Hyun Kang
  • Group of winding electrodes
    Patent number: 5843594
    Abstract: A cylindrical cell is fabricated with a cathode, an anode, a separated placed between the cathode and anode, and a separator fragment extending from a winding axis to the initial part of a cathode.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: December 1, 1998
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jin Dong Cheong, Jong Wook Lee, Byoung Hyun Kang