Patents by Inventor Shogo Sanda

Shogo Sanda 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).

  • Patent number: 4188932
    Abstract: An internal combustion engine comprising a primary combustion chamber, a secondary combustion chamber communicated with the primary combustion chamber through a passage, a spark plug with electrodes extended in said passage, and means for preventing the electrodes from being directly exposed to the burnt gas injected into the primary combustion chamber from the secondary combustion chamber through the passage.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: February 19, 1980
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masami Konishi, Norihiko Nakamura, Shogo Sanda