Patents by Inventor Wanno Lee

Wanno 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).

  • Radioactive cesium adsorbent and method of removing radioactive cesium using the same
    Patent number: 10850251
    Abstract: A radioactive cesium adsorbent includes photocatalyst particles and Prussian blue. The ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles. A method of removing radioactive cesium using the radioactive cesium adsorbent includes preparing a composition comprising photocatalyst particles and Prussian blue; preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; and reducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 1, 2020
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Hyuncheol Kim, Soonhyun Kim, Minsun Kim, Sang Kyoo Lim, Wanno Lee
  • RADIOACTIVE CESIUM ADSORBENT AND METHOD OF REMOVING RADIOACTIVE CESIUM USING THE SAME
    Publication number: 20200027615
    Abstract: A radioactive cesium adsorbent includes photocatalyst particles and Prussian blue. The ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles. A method of removing radioactive cesium using the radioactive cesium adsorbent includes preparing a composition comprising photocatalyst particles and Prussian blue; preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; and reducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution.
    Type: Application
    Filed: November 13, 2018
    Publication date: January 23, 2020
    Inventors: Hyuncheol KIM, Soonhyun KIM, Minsun KIM, Sang Kyoo LIM, Wanno Lee