Patents by Inventor Hiromu Fujimoto

Hiromu Fujimoto 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: 4982799
    Abstract: A two-axle four-wheel tractor is equipped at its front and rear ends with working implements, individually, which are of the same type, opposite in working direction and shiftable between a working position and a nonworking position. The tractor has a steering system for steering the front and rear four wheels in the same direction through the same angle, a running transmission system for driving only the wheels positioned toward one of the working implements which is lifted to the nonworking position or, in a special case, a system for restraining the wheels positioned rearward with respect to the direction of advance of the tractor in a straight running position without permitting steering.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: January 8, 1991
    Assignee: Kubota Ltd.
    Inventors: Hiromu Fujimoto, Nobuhide Yanagawa, Eriya Harada