Patents by Inventor Hiromasa Tuzuki

Hiromasa Tuzuki 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).

  • Holding chuck for a tire-wheel with a chatter-suppressing device
    Patent number: 6502834
    Abstract: A holding chuck has a clamping device for firmly holding the tire-wheel in the position aligned with a center axis of a holding chuck. Chatter-suppressing dampers are disposed on an intermediate plate fitted around the chuck. The dampers are disposed on circles concentric with the center axis of the holding chuck. Each of the dampers has a damping rod extending in the direction parallel to the center axis and abutting a rim of the wheel. A damper cover is disposed between the rim of the wheel and the dampers and fastened to the holding chuck. The damper cover has slot holes disposed on a circle concentric with the center axis of the chuck which allow the damping rods of the dampers disposed on only one of the concentric circles to extend therethrough and abut the rim of the wheel.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: January 7, 2003
    Assignees: Howa Machinery, Ltd., Toyota Motor Hokkaido Inc., Kanzaki Kokyukoki Manufacturing Co., Ltd.
    Inventors: Katsumi Fukui, Akihiko Imai, Hiromasa Tuzuki, Hirokazu Ueda