Patents by Inventor Tatsuo Yoshitsugu

Tatsuo Yoshitsugu 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 group management control apparatus and elevator group management control method
    Patent number: 5865274
    Abstract: In a vertically movable elevator group management control apparatus for control of a plurality of transversely shiftable cars among plural shafts, control is done by storing route data with respect to each said car, generating target floor data including a target floor, based on car call data obtained in correspondence with each said car and station call data as obtained correspondingly to each floor, estimating the time taken for said car to reach said target floor, based on at least said route data, said target floor data and said car call data, and assigning a certain car to a certain floor call, based on the estimated arrival time.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: February 2, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junichi Kiji, Shoji Nakai, Mitsuyo Yamaura, Naoki Imasaki, Susumo Kubo, Tatsuo Yoshitsugu