Patents by Inventor Ko Magome

Ko Magome 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 producing vanadium electrolytic solution
    Patent number: 5368762
    Abstract: Tri- and tetravalent vanadium solutions suitable for a redox battery are produced as follows. Vanadium pentaoxide or ammonium vanadium is reduced in the presence of a concentrated sulfuric acid and a reducer, thus producing a solution containing tetravalent vanadium. At least a portion of the trivalent vanadium solution is heated to 180.degree.-250.degree. C., thus producing a trivalent vanadium compound. If the trivalent compound produced is a solid, it is collected and solubilized in water and/or sulfuric acid. Then, unreacted sulfur is filtered out, thus obtaining a trivalent vanadium solution.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: November 29, 1994
    Assignee: Kashima-Kita Electric Power Corporation
    Inventors: Kanji Sato, Masato Nakajima, Ko Magome