Patents by Inventor Syuji Ohno

Syuji Ohno 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: 7296657
    Abstract: A muffler having a muffler body divided into first and second exhaust chambers by a partitioning member which has a third exhaust chamber formed therein. An exhaust inlet introduces exhaust gas from an engine into the first exhaust chamber. First communication bores provide communication between the first and second exhaust chambers, and second communication bores provide communication between the second exhaust chamber and the third exhaust chamber. The third exhaust chamber is open to the atmosphere through an exhaust outlet pipe. An exhaust emission control catalyst is carried on an outer surface of the partitioning member facing the first and second exhaust chambers, as well as on an inner surface of the partitioning member facing the third exhaust chamber. An inner surface of the muffler body does not carry the exhaust emission control catalyst.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: November 20, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Syuji Ohno, Shosaku Chiba
  • Publication number: 20050224284
    Abstract: In an engine exhaust muffler with an exhaust emission control function, the inside of a box-shaped muffler body is divided into a first exhaust chamber and a second exhaust chamber by a partitioning member which has a third exhaust chamber formed therein. The muffler body is provided with an exhaust inlet for introducing exhaust gas from an engine into the first exhaust chamber. The partitioning member is provided with first communication bores providing communication between the first and second exhaust chambers, and second communication bores providing communication between the second exhaust chamber and the third exhaust chamber. The third exhaust chamber is open to the atmosphere through an exhaust outlet pipe. An exhaust emission control catalyst is carried on an outer surface of the partitioning member facing the first and second exhaust chambers, as well as on an inner surface of the partitioning member facing the third exhaust chamber.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 13, 2005
    Inventors: Syuji Ohno, Shosaku Chiba