Patents by Inventor Tsugio Mizobe

Tsugio Mizobe 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).

  • External member for a tripod joint and method for manufacturing same
    Patent number: 4242888
    Abstract: An external member for a tripod joint including a cup shaped spider holding portion for holding a spider formed with trunions and a stem portion formed with splines for power transmission coupled to the bottom of the spider holding portion and wherein the bottom of the spider holding portion is made imperforate and at least the spider holding portion or the stem holding portion is formed with an annular ridge and the spider holding portion and the stem portion are integrally friction-welded together at the annular ridge.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: January 6, 1981
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Shigeki Komeiji, Yoshisumi Futamura, Tsugio Mizobe, Morio Okayama, Isao Iwasaki