Patents by Inventor Tetsuya Kohgo

Tetsuya Kohgo 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).

  • Double-mass type dynamic damper having two damper systems
    Patent number: 5884902
    Abstract: A double-mass type dynamic damper mounted on a rod-shaped oscillating member, which includes a first damper system and a second damper system that are tuned to two different frequency ranges. Each of the damper systems includes a cylindrical mass member disposed radially outwardly of the oscillating member, and an elastic support member for elastically supporting the mass member with respect to the oscillating member. The elastic support members of the two damper systems are disposed in series and connected to each other in the axial direction. The dynamic damper further includes an elastic connector formed by adjacent parts of the two elastic support members, for elastically connecting axially opposed faces of the two mass members.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: March 23, 1999
    Assignees: Tokai Rubber Industries, Ltd., Nissan Motor Co., Ltd.
    Inventors: Masaaki Hamada, Takahiro Aoi, Tetsuya Kohgo, Masaaki Mishima