Patents by Inventor Yoshisuke Shingai

Yoshisuke Shingai 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).

  • Crankcase chamber compression type two cycle internal combustion engines
    Patent number: 4195600
    Abstract: In the engine the side wall of the piston is provided with a perforation at a portion not facing an exhaust port of the cylinder for communicating the cylinder wall with the crankcase chamber.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: April 1, 1980
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yoshisuke Shingai