Patents by Inventor Osamu Nagabora

Osamu Nagabora 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).

  • Crank chamber compression type two cycle engine
    Patent number: 5353759
    Abstract: A crankcase compression, two cycle, internal combustion engine including an arrangement for facilitating starting by reducing the viscosity of lubricant which may remain on the cylinder bore after engine shut down. This viscosity decrease is accomplished by adding a low viscosity fluid through the cylinder bore during starting if the temperature of the engine is below a predetermined amount.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: October 11, 1994
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Koji Abe, Kimihiro Nonaka, Osamu Nagabora