Patents by Inventor Wataru Ishimasu

Wataru Ishimasu 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).

  • Gear-operated speed change apparatus for automatic transmission
    Publication number: 20030186775
    Abstract: The present invention has an object to provide a gear-operated speed change apparatus for an automatic transmission, which can make the degree of freedom for selecting a gear ratio higher than that of the case using the Ravigneaux type composite planetary gear train, while achieving a strength advantage of the gear train, an improvement in the fuel economy, the coaxial positioning of the input portion and the output portion and the size reduction of the automatic transmission altogether.
    Type: Application
    Filed: February 6, 2003
    Publication date: October 2, 2003
    Inventors: Wataru Ishimasu, Yasuo Sumi