Patents by Inventor Kanroku Chonan

Kanroku Chonan 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 of separating and transferring ion-exchange resin
    Patent number: 4891138
    Abstract: A method for separating and transferring an ion-exchange resin having the lower specific gravity from an ion-exchange resin having the higher specific gravity in an ion-exchange resin separating tank that is indispensable to a pure or ultrapure water producing plant and which is packed with a mixed bed of ion-exchange resins having different specific gravities is disclosed.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: January 2, 1990
    Assignee: Ebara Corporation
    Inventors: Kanroku Chonan, Kazuyuki Koyama, Masahiro Hagiwara