Patents by Inventor Yoichi Shihozawa

Yoichi Shihozawa 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 pipe structure for saddle-ride type vehicle
    Patent number: 8028798
    Abstract: An exhaust-pipe structure for a saddle-ride type vehicle includes expansion paths each having a capacity appropriate for the output capacity of a corresponding cylinder. A front exhaust pipe and a rear exhaust pipe extend from a front cylinder and a rear cylinder constituting a V-type engine, respectively. A silencer is connected to rear end portions of the front and rear exhaust pipes. As expansion chambers, the silencer is provided with a lower first chamber led from the front cylinder and an upper first chamber led from the rear cylinder. A protruding space protruding from the lower first chamber is formed so that the capacity of the lower first chamber led from the front cylinder is larger than the capacity of the upper first chamber led from the rear cylinder.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 4, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masashi Koyanagi, Yoichi Shihozawa, Taichi Mori, Hayato Yamazaki
  • EXHAUST PIPE STRUCTURE FOR SADDLE-RIDE TYPE VEHICLE
    Publication number: 20100192880
    Abstract: An exhaust-pipe structure for a saddle-ride type vehicle includes expansion paths each having a capacity appropriate for the output capacity of a corresponding cylinder. A front exhaust pipe and a rear exhaust pipe extend from a front cylinder and a rear cylinder constituting a V-type engine, respectively. A silencer is connected to rear end portions of the front and rear exhaust pipes. As expansion chambers, the silencer is provided with a lower first chamber led from the front cylinder and an upper first chamber led from the rear cylinder. A protruding space protruding from the lower first chamber is formed so that the capacity of the lower first chamber led from the front cylinder is larger than the capacity of the upper first chamber led from the rear cylinder.
    Type: Application
    Filed: December 10, 2009
    Publication date: August 5, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Masashi Koyanagi, Yoichi Shihozawa, Taichi Mori, Hayato Yamazaki