Patents by Inventor Sadanori Kuroda

Sadanori Kuroda 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).

  • Elevator apparatus for use in a building having a seismic isolation building portion and a non-seismic isolation building portion
    Patent number: 6557306
    Abstract: To provide sufficient clearance for an entrance part of an elevator hall facing a non-seismic isolation building portion, the partition wall on the entrance side may be removed and an expansion floor provided between the non-seismic isolation building portion entrance and the elevator shaft landing. A movable wall is provided between partition members located on the right and left sides of the elevator shaft. The expansion floor can move in the front and back directions with the partition members on the right and left sides as a guide. Furthermore, the wall moves with the elevator shaft independently in the right and left directions and follows the non-seismic isolation building movement.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 6, 2003
    Assignees: Hitachi, Ltd., Hitachi Mito Engineering Co., Ltd.
    Inventors: Yuji Sekiya, Masayuki Shigeta, Sadanori Kuroda