Patents by Inventor Kunihiko Yokoya

Kunihiko Yokoya 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).

  • Ball joint and a method for manufacturing the ball joint
    Patent number: 4231673
    Abstract: The ball joint for the suspension system of automobiles, in which as a load-supporting seat, a multi-layer material provided with the synthetic resin layer having self-lubricating ability and abrasion resistance is used on the surface of the back metal, while as an opposite seat to a ball stud, synthetic resin having self-lubricating ability and wear resistance is used, and constituted so as to keep securely load support applied on the ball head by both seats.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: November 4, 1980
    Assignees: Oiles Industries Co., Ltd., Musashi Seimitsu Kogyo Kabushiki Kaisha
    Inventors: Eiji Satoh, Masayuki Kohama, Kunihiko Yokoya, Kenji Yamada, Akira Nemoto