Patents by Inventor Katunori Watanabe

Katunori Watanabe 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: 4399717
    Abstract: To selectively provide multi-speed two-wheel drive, multi-speed four-wheel drive and low-speed high-torque four-wheel drive, a change-speed gearing for a motor vehicle includes a rear output shaft coaxial with a front output shaft, a clutch hub fixed to the rear end portion of the front output shaft adjacent to the front end of the rear output shaft, a first hub sleeve axially slidable on the clutch hub to be shifted toward the front end of the rear output shaft to connect the front and rear output shafts, a speed-reduction driven gear freely rotatable on the front output shaft adjacent to the clutch hub and in meshing engagement with a counter gear fixed to a countershaft, and a second hub sleeve axially slidable on a hub portion of the driven gear to be shifted toward the clutch hub after the first hub sleeve is shifted.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: August 23, 1983
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayoshi Funato, Katunori Watanabe