Patents by Inventor Mitsuo Kurihara

Mitsuo Kurihara 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).

  • Patent number: 4631076
    Abstract: Apparatus for removing black fumes from exhaust gas from an internal combustion engine includes a filter mounted on an exhaust pipe of the engine. The filter includes a body defining a filter chamber and a filter element mounted within the filter chamber for collecting carbon particles constituting the black fume. A solution dispersing device is provided for dispersing a solution of catalyst to the exhaust gas in the filter chamber at a position upstream of the filter element to cause the oxidation of the carbon particles collected in the filter element to remove them therefrom. There is also disclosed a method of removing black fume from exhaust gas from the internal combustion engine.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: December 23, 1986
    Assignees: Tokyo Roki Co., Ltd., Shimizu Construction Co., Ltd.
    Inventors: Mitsuo Kurihara, Fumio Sato, Yoshiyuki Iwasawa, Nobutaka Koibuchi, Hiroshi Harada