Patents by Inventor Toshiaki Nasuda

Toshiaki Nasuda 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).

  • Dynamic vibration absorber
    Patent number: 5445249
    Abstract: A dynamic vibration absorber includes a movable weight portion, and a movable portion magnet assembly provided for the movable weight portion. The movable portion magnet assembly includes a magnet train having a plurality of cylindrical magnets disposed coaxially in such a manner that adjacent cylindrical magnets have different adjacent magnetic poles. A fixed portion is provided in opposed relation to the movable weight portion and a fixed portion magnet train is provided on the fixed portion and includes a plurality of magnets having magnetic poles different, in a stationary state, from opposed magnetic poles of the cylindrical magnets. The movable weight portion is preferrably disposed in a vessel.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: August 29, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiko Aida, Hiroshi Miyano, Kiyoshi Hattori, Yoshiyuki Sakurai, Eiji Manome, Toshiaki Nasuda