Patents by Inventor Jyoichi Nakata

Jyoichi Nakata 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).

  • Process for concentration of caustic alkali solution produced by ion exchange membrane type electrolysis
    Patent number: 4145265
    Abstract: In the electrolysis of an alkali metal chloride in an ion exchange membrane type electrolysis cell the dilute caustic alkali solution produced in the cathode compartment is concentrated in a series of heating and evaporating operations wherein it is heated by heat exchange with the hot dilute metal chloride solution removed from the anode compartment. The caustic alkali solution and metal chloride solutions flow countercurrently through the heat exchange steps of the concentrating operations.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: March 20, 1979
    Assignees: Asahi Glass Company, Ltd., Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Jyoichi Nakata, Yasumasa Chiba, Tetsuhiko Seto, Yoshinori Fukuhara