Patents by Inventor Masato Tazaki

Masato Tazaki 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).

  • Extraction agent for palladium and platinum and process of extracting same
    Patent number: 5342526
    Abstract: Disclosed herein are an extracting agent for precious metal having the below foretold and a process of extracting precious metals employing the said extracting agent from a hydrochloric acid solution containing the precious metals. Further, by controlling the concentration of the hydrochloric acid solution and the extraction time, the separation of the metals can be performed.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 30, 1994
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Katsutoshi Inoue, Kazuharu Yoshizuka, Yoshinari Baba, Masato Tazaki