Patents by Inventor Kunihiro Nishizaki

Kunihiro Nishizaki 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).

  • Water treatment apparatus for a fuel cell system
    Patent number: 5980716
    Abstract: Low conductivity cooling water for a fuel cell body is obtained by a water treatment apparatus which removes dissolved carbon dioxide gas in the exhaust gas condensate by a decarbonation column. Iron oxide is eliminated from the condensate as well as blowdown water by a MF membrane separator device. Iron ions are removed by a chelate resin column. Deionization occurs with an electrodeionizer which has an internal ion exchange resin.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: November 9, 1999
    Assignees: Tokyo Gas Co., Ltd., Kurita Water Industries, Ltd.
    Inventors: Hiroshi Horinouchi, Kunihiro Nishizaki, Shigeaki Sato, Fumio Azakami, Toshiaki Deguchi