Patents by Inventor Kiyofumi Yokoyama

Kiyofumi Yokoyama 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).

  • Carpeting trimmer
    Patent number: 3991467
    Abstract: A carpeting trimmer which includes a body consisting of a base having a flat bottom and upwardly extending grip, a channel extending through the body and slidably accommmodating a blade, a base plate mounted below the base of the body, and a disc having a screw threaded in the bottom of the base. The base plate is movable towards and away from the bottom of the base in such a manner that the front edge of the base plate retreats behind the front edge of the base. The disc is arranged between the bottom of the base and the base plate for supporting the latter.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: November 16, 1976
    Inventor: Kiyofumi Yokoyama