Patents by Inventor Yasuhiro Tange

Yasuhiro Tange 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).

  • Attachment of fork fitting to fork leg
    Patent number: 4404458
    Abstract: A method for attaching a bicycle fork fitting to a fork leg is disclosed, using a particular fork fitting means. A steel pipe is formed with a fork leg including its one closed distal end with a joint. The fitting means is provided with projections at the portions near to both ends of the side thereof to be welded. Electric currents are passed through the closed portion of the fork leg and the projections of the fitting which are brought in contact with each other under pressure. Upon reaching a temperature suitable for welding, the thus integrated arrangement is upset under greater pressure, so that the fitting is welded to the fork leg.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: September 13, 1983
    Assignee: Tange Industries, Ltd.
    Inventor: Yasuhiro Tange