Patents by Inventor Shigemitsu Adachi

Shigemitsu Adachi 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).

  • Patent number: 5689882
    Abstract: A method of producing a spindle that can be easily press fit into a knuckled suspension arm with high productivity. A round bar is forged by a header to form a work in process part which is, in turn, thermally refined. If necessary, shot blast and lubrication are applied to the exterior surface of the work in process part. Subsequently, by rolling the work in process part, screw threads are formed on a male screw portion. The work in process part is set and finished in a press. The peripheral surfaces of the bearing attachment portion as well as the knuckle press fit portion of the work in process part are finished in a press. Since the surface of the knuckle press fit portion of the spindle is formed or extruded in the press, the portion can be easily press fit into a knuckled suspension arm with little resistance. The method of producing the spindle obviates the necessity of machining and grinding thereby providing enhanced productivity.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: November 25, 1997
    Assignees: TRW Steering Systems Japan Co. Ltd., Honda Motor Co. Ltd.
    Inventors: Shigemitsu Adachi, Kazuo Nakagawa, Kiyoaki Tanidono, Masaharu Tsuboi