Patents by Inventor Haruo Fujino

Haruo Fujino 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).

  • Multi-cylinder internal combustion engine having siamesed exhaust ports
    Patent number: 4221197
    Abstract: A multi-cylinder internal combustion engine has siamesed exhaust ports each of which is shared by two adjacent cylinders. The valve timings of intake and exhaust valves of the two cylinders are so adjusted that flow of the exhaust gases from one cylinder is not obstructed in the siamesed exhaust port by the flow of the exhaust gases from the other cylinder in order to prevent power outputs of the two cylinders from being unbalanced.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: September 9, 1980
    Assignee: Nissan Motor Company, Limited
    Inventors: Hiroshi Kuroda, Yasuo Nakajima, Yoshimasa Hayashi, Haruo Fujino