Patents by Inventor Ryozo Mitsui

Ryozo Mitsui 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).

  • Flow control valve for exhaust gas purifying system
    Patent number: 3999737
    Abstract: A flow control valve for an exhaust gas purifying system which is divided into a first valve chamber into which the exhaust gases flow and a second valve chamber out of which the exhaust gases flow. A first valve means responsive to the exhaust gases controls the communication between the first and second valve chambers and a second valve means controls the operation of the first valve means in response to the negative pressure in an air intake system.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: December 28, 1976
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yukihide Hashiguchi, Ryozo Mitsui