Patents by Inventor Kiyoyasu Mitsumori

Kiyoyasu Mitsumori 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).

  • Patent number: 5193651
    Abstract: An elevator apparatus includes guide devices having guide members engaged with a pair of guide rails so as to guide a car along the guide rails in a manner to hold the car in a proper position. Each of the guide devices includes a resilient support member having a small spring constant supporting the guide member in such a manner that the guide member is movable in a direction perpendicular to a plane of the guide rail. An axis of suspension of the car is deviated from a position of a center of gravity of the car so as to cause a guide load, acting on a side surface of the guide rail via the guide member in a direction perpendicular to the plane of the guide rail, to have a deflected load acting on the guide rail in one direction. The guide device further includes an anti-deflected load generating device for generating an anti-deflected load in a direction to reduce a deflected load component of the guide load produced by the above deviation.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 16, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Shigeta, Tadashi Shibata, Jun Sugahara, Toshihiko Nara, Kiyoyasu Mitsumori