Patents by Inventor Hi Min Lee

Hi Min 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
  • Metal oxide nano powder and manufacturing method of the same
    Patent number: 8038979
    Abstract: Disclosed is a method of manufacturing a metal oxide nano powder comprising preparing a first dispersed solution by adding a nano-sized metal powder to water and dispersing the metal powder within the water, performing a hydration reaction of the first dispersed solution at a temperature of about 30 to about 70° C. to generate a precipitation, and filtering and drying the precipitation to prepare a metal oxide powder. Also, disclosed is a metal oxide nano powder manufactured by the method described above, and having any one of a bar-form, a cube-form, and a fiber-form.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 18, 2011
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Chang Kyu Rhee, Min Ku Lee, Young Rang Uhm, Jin Ju Park, Byung Sun Han, Hi Min Lee, Seung-Hee Woo
  • 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
  • Metal oxide nano powder and manufacturing method of the same
    Publication number: 20080193760
    Abstract: Disclosed is a method of manufacturing a metal oxide nano powder comprising preparing a first dispersed solution by adding a nano-sized metal powder to water and dispersing the metal powder within the water, performing a hydration reaction of the first dispersed solution at a temperature of about 30 to about 70° C. to generate a precipitation, and filtering and drying the precipitation to prepare a metal oxide powder. Also, disclosed is a metal oxide nano powder manufactured by the method described above, and having any one of a bar-form, a cube-form, and a fiber-form.
    Type: Application
    Filed: November 6, 2007
    Publication date: August 14, 2008
    Inventors: Chang Kyu Rhee, Min Ku Lee, Young Rang Uhm, Jin Ju Park, Byung Sun Han, Hi Min Lee, Seung-Hee Woo