Patents by Inventor Shoichi Tsuzi

Shoichi Tsuzi 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).

  • Two stage combustion furnace
    Patent number: 4135874
    Abstract: Disclosed is a furnace whose NOx emission may be reduced to a minimum degree so far unattainable in any prior art furnaces by optimumly controlling the ratio of exhaust gas mixed with the combustion air to be supplied to the burners to the exhaust gas to be mixed with the two-stage combustion air which is admitted through air nozzles into the combustion chamber and also by optimumly controlling the distribution of the two-stage combustion air in the combustion chamber depending upon the operating conditions. The present invention may be applied to any types of furnaces.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: January 23, 1979
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Shoichi Tsuzi, Kiyoshi Aoki, Takeshi Sakai, Hiroshige Ikebe, Dogi So