Patents by Inventor Akihito Amemiya

Akihito Amemiya 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).

  • Hydraulic damper
    Patent number: 5224573
    Abstract: A hydraulic damper with a rod guide made by pressing a circular plate is disclosed. This rod guide includes an inner tubular portion defining a bore supporting a piston rod, an outer tubular portion extending in the same direction as the inner tubular portion does, and a flange portion extending radially outwardly from the outer tubular portion. A ring is connected between an inwardly turned axial end portion of an outer tube and the flange portion. An annular sealing element retainer is disposed in the ring. The ring provides a transmission path of a force, thus preventing the sealing element retainer from being subject to the force.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: July 6, 1993
    Assignee: Atsugi Unisia Corporation
    Inventors: Akihito Amemiya, Munehiro Awataguchi, Issei Kanari, Masashiro Kushida