Patents by Inventor Heon-Gu Cho

Heon-Gu Cho 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).

  • Cooling apparatus of discharge lamp
    Patent number: 8115368
    Abstract: Disclosed is a cooling apparatus of a discharge lamp for applying a heat spreading plate to a high intensity discharge lamp or for applying both a heat spreading plate and a cooling fan to a high intensity discharge lamp so as to improve the durability of an embedded electronic ballast and to increase an optical output efficiency of a discharge lamp.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: February 14, 2012
    Assignee: SK America, Inc.
    Inventor: Heon-Gu Cho
  • Cooling apparatus of discharge lamp
    Publication number: 20090153061
    Abstract: Disclosed is a cooling apparatus of a discharge lamp for applying a heat spreading plate to a high intensity discharge lamp or for applying both a heat spreading plate and a cooling fan to a high intensity discharge lamp so as to improve a durability of an embedded electronic ballast and to increase an optical output efficiency of a discharge lamp.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Inventor: Heon-Gu Cho