Patents by Inventor Keiichi SUGAWARA

Keiichi SUGAWARA 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).

  • METHOD FOR RECOVERING PGM
    Publication number: 20220259697
    Abstract: There is provided a method for recovering PGM, in which at least one base metal oxide selected from a group consisting of copper oxide, iron oxide, tin oxide, nickel oxide and lead oxide is added to and melted in a molten slag, and a PGM alloy contained in the molten slag is recovered.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 18, 2022
    Applicants: WASEDA UNIVERSITY, DOWA METALS & MINING CO., LTD., NIPPON PGM CO., LTD.
    Inventors: Keiichi SUGAWARA, Hiromitsu YATSUHASHI, Katsunori YAMAGUCHI, Takashi MURATA