Patents by Inventor Toshiyuki Hacegawa

Toshiyuki Hacegawa 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).

  • Front wheel speed-up mechanism for a four wheel drive vehicle when turning
    Patent number: 4798259
    Abstract: A front wheel speed-up mechanism for a four wheel drive vehicle when turning, which, when front wheels serve as steering wheels, corrects a delay at the rotational circumferential speed of the front wheels later than the actual moving speed when the vehicle is turning, thereby gradually increasing the rotational circumferential speed of the front wheels in proportion to a length of a turning radius thereof.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: January 17, 1989
    Assignee: Kanzaki Kokyukoki Mfg. Co.
    Inventors: Toshiro Azuma, Toshiyuki Hacegawa