Patents by Inventor Tetsuo Eto

Tetsuo Eto 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).

  • Coiled damper element
    Patent number: 4483426
    Abstract: A damper element comprises a lead sheet and vibration-proof sheet spirally and alternately wound to provide a spiral, circular configuration with these sheets bonded to each other. This arrangement permits a shearing energy acting upon one and the other surface of the circular configuration to be absorbed by the deformation of the lead sheet and vibration-proof sheet.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: November 20, 1984
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Kengo Tagawa, Toshio Nasu, Takao Yamada, Kazuo Yamashita, Tetsuo Eto