Patents by Inventor Gyoung-Ja Lee

Gyoung-Ja Lee 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).

  • Water pollution sensor for detecting heavy metal and method of manufacturing the same
    Patent number: 8128794
    Abstract: A water pollution sensor for detecting a heavy metal, the water pollution sensor including: a base member; a conductive layer formed at a portion of one of surfaces of the base member and consisting of a conductive material; an insulating layer formed on the conductive layer to enable a portion of the conductive layer to be exposed; and a bismuth layer formed on a portion of the exposed conductive layer and including bismuth powders.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 6, 2012
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Chang Kyu Rhee, Gyoung-Ja Lee, Hi Min Lee, Min Ku Lee, Sang-Hoon Lee, Sung Mo Hong, Jong Keuk Lee, Ju Myoung Kim
  • WATER POLLUTION SENSOR FOR DETECTING HEAVY METAL AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20080283395
    Abstract: A water pollution sensor for detecting a heavy metal, the water pollution sensor including: a base member; a conductive layer formed at a portion of one of surfaces of the base member and consisting of a conductive material; an insulating layer formed on the conductive layer to enable a portion of the conductive layer to be exposed; and a bismuth layer formed on a portion of the exposed conductive layer and including bismuth powders.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Inventors: Chang Kyu Rhee, Min Ku Lee, Young Rang Uhm, Hi Min Lee, Jin Ju Park, Gyoung-Ja Lee, Eun Jin Chae