Patents by Inventor Moriyuki Taguchi

Moriyuki Taguchi 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).

  • Method and device for silencing the exhaust noise of internal combustion engines
    Patent number: 4225011
    Abstract: An exhaust gas silencing system wherein standing waves are utilized in a silencing chamber to reduce low frequency components of noise, and a downstream muffler is utilized to reduce the high frequency components of noise. An expansion chamber can be utilized further to reduce the pressure of the sound waves.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: September 30, 1980
    Inventor: Moriyuki Taguchi
  • Device for silencing the exhaust noise of internal combustion engines
    Patent number: 4149611
    Abstract: An exhaust gas silencing system wherein standing waves are utilized in a silencing chamber to reduce low frequency components of noise, and a downstream muffler is utilized to reduce the high frequency components of noise. An expansion chamber can be utilized further to reduce the pressure of the sound waves.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: April 17, 1979
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Moriyuki Taguchi