Patents by Inventor Yasuo Isikawa

Yasuo Isikawa 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).

  • Vehicle seat
    Patent number: 4557522
    Abstract: A seat used for vehicles such as an automobile and airplane. This seat comprises a cushion member provided on its surface with one or more markings for positioning of a top member and a top member to cover the cushion member provided with a matching part corresponding to the marking. The cushion member may be formed of a foam material, and the surface of the cushion member may be flat or concavo-convex. The marking may be formed by cutting out the surface of the cushion member or by coloring the same with a coloring agent.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: December 10, 1985
    Assignee: Tachikawa Spring Co., Ltd.
    Inventor: Yasuo Isikawa