Patents by Inventor Keiji Uemura

Keiji Uemura 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).

  • Apparatus for membrane separation
    Patent number: 4731181
    Abstract: A module of membranes for permeatingly treating fluid to be treated is housed in a pressure vessel, and, in this pressure vessel, a device for feeding the fluid to be treated is integrally connected to this pressure vessel. The pressure vessel has devices for taking the permeated fluid and the thickened fluid out of the module, respectively.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: March 15, 1988
    Assignee: Kurita Water Industries Ltd.
    Inventor: Keiji Uemura