Patents by Inventor Takao Niwa

Takao Niwa 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).

  • Combustion chamber structure for a spark ignition engine
    Patent number: 3987776
    Abstract: A spark ignition engine of the carburetor single chamber type stratified charge combustion system wherein air and rich mixture are supplied successively by the same path, comprising a barrier arranged in the combustion chamber for directing the intake gas flow, said barrier projecting from the wall of the combustion chamber into the interior of the combustion chamber, whereby the air and rich mixture are positively stratified in the order in which they are drawn into the combustion chamber.
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: October 26, 1976
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kenji Goto, Takao Niwa