Patents by Inventor Hideo Uzu

Hideo Uzu 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).

  • Four-wheel drive tractor
    Patent number: 4258818
    Abstract: A four-wheel drive tractor is provided with a front-wheel driving mechanism according to the invention, a universal joint is interposed in a portion of the front-wheel drive shaft system which carries out the front-wheel drive and intersects with the center axis of the kingpin. A universal joint housing encloses the universal joint and is divided into upper and lower parts along a plane perpendicular to the center axis of the kingpin, and the lower universal joint housing part is interlocked with a yoke and is pivotable in relation to the upper universal joint housing part together with the front wheels.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: March 31, 1981
    Assignee: Toyosha Co., Ltd.
    Inventor: Hideo Uzu