Patents by Inventor Tadakazu Ishibashi

Tadakazu Ishibashi 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).

  • V belt type automatic transmission system
    Patent number: 5172786
    Abstract: Several embodiments of snowmobiles driven by an engine and variable belt transmission mechanism wherein the variable belt transmission has its input shaft journaled for rotation in the crankcase of the engine and driven from the engine crankshaft through a gear reduction so that the transmission loads are not carried by the crankshaft and wherein the crankshaft torsional vibrations are not transmitted to the transmission input shaft.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: December 22, 1992
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Tadakazu Ishibashi, Nozomu Kishira, Yoshiharu Isaka