Patents by Inventor Naoyoshi Yamago

Naoyoshi Yamago 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).

  • Damped bearing device
    Patent number: 4392751
    Abstract: A damped bearing for damping the vibration generated in a bearing supporting a rotary shaft and shaft system, by a fluid film damper and by a resilient bearing support. The damped bearing is characterized by having a means in the fluid film damper for adjusting the damping coefficient of the fluid film damper.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: July 12, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Michiaki Ida, Noriaki Hagiwara, Naoyoshi Yamago, Masahiro Yoshioka, Katsuaki Kikuchi