Patents by Inventor Masuo Nagasawa

Masuo Nagasawa 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).

  • Diaphragm process electrolytic cell
    Patent number: 3989615
    Abstract: A high electrodensity chloro-alkali electrolytic diaphragm cell, wherein the diaphragm comprises a layer mixture of asbestos fibers and from 1 to 30 percent by weight of carbon fibers.
    Type: Grant
    Filed: August 20, 1973
    Date of Patent: November 2, 1976
    Assignee: Nippon Soda Company Limited
    Inventors: Shotaro Kiga, Shozo Chiba, Kenichi Edahiro, Naoshi Yoshida, Masuo Nagasawa