Patents by Inventor Shouzo Yanagisawa

Shouzo Yanagisawa 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).

  • Exhaust emission control device for diesel engine
    Patent number: 4581891
    Abstract: An exhaust emission control device for a diesel engine which controls the burner for oxidizing particulates in an exhaust gas of the diesel engine trapped in a filter by a burner being ignited after a predetermined time from a starting of the diesel engine.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: April 15, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Toshifumi Usui, Shouzo Yanagisawa, Kazumi Iwai