Patents by Inventor Nobuo Hamazaki

Nobuo Hamazaki 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).

  • Gas engine
    Patent number: 5699767
    Abstract: A control system for and exhaust retarder in and exhaust pipe of an engine to which a mixer and throttle valve are connected including terminating means for terminating fuel feed into the engine upon receipt of an exhaust retarder shutter operation signal, an oxygen richness sensor on the exhaust pipe and a control system for operating an actuator for the exhaust retarder shutter when sensed oxygen density in the exhaust pipe deviates from a predetermined oxygen range.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: December 23, 1997
    Assignee: Nissan Diesel Motor Co., Ltd.
    Inventors: Ikurou Notsu, Hiroshi Matsuda, Nobuo Hamazaki, Yutaka Takada, Tatsuji Miyata, Akira Nakamura