Patents by Inventor Youngran HONG

Youngran HONG 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).

  • Electroless plating solution and electroless plating method for recovering precious metal adsorbed on porous porphyrin polymer
    Patent number: 11466369
    Abstract: The present invention relates to a method for recovering a precious metal selectively adsorbed on a porous porphyrin polymer, and to an electroless plating method capable of recovering a precious metal in a film form by desorbing and leaching the precious metal without an additional oxidizing agent and using same as a plating solution to reduce the precious metal on the surface of a substrate without an additional reducing agent.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: October 11, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong-In Han, Jieun Son, Cafer Yavuz, Youngran Hong
  • ELECTROLESS PLATING SOLUTION AND ELECTROLESS PLATING METHOD FOR RECOVERING PRECIOUS METAL ADSORBED ON POROUS PORPHYRIN POLYMER
    Publication number: 20220056591
    Abstract: The present invention relates to a method for recovering a precious metal selectively adsorbed on a porous porphyrin polymer, and to an electroless plating method capable of recovering a precious metal in a film form by desorbing and leaching the precious metal without an additional oxidizing agent and using same as a plating solution to reduce the precious metal on the surface of a substrate without an additional reducing agent.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 24, 2022
    Inventors: Jong-In HAN, Jieun SON, Cafer YAVUZ, Youngran HONG