Patents by Inventor Katutaro Masuda

Katutaro Masuda 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).

  • Passenger transport installation, vehicle for use therein, and method of operating said installation
    Patent number: 5090515
    Abstract: A passenger transport installation in which a large number of people can be efficiently transported between at least two vertically-spaced places. Stations communicate with a vertical elevator passage or passages along which vehicles can move upward and downward, and the vehicles stop at the stations to allow passagers to get on and off. While passengers get on and off the vehicles at the stations, other vehicles carrying other passengers can move upward and downwardly along the elevator passage or passages.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: February 25, 1992
    Assignees: Hitachi, Ltd., Hitachi Elevayor Engineering and Service Co., Ltd.
    Inventors: Tastuhiko Takahashi, Jun Sugahara, Toshihiko Nara, Yuki Yamamoto, Yoshinari Atsumi, Hideaki Seki, Katutaro Masuda, Nobuyoshi Sato, Masanobu Itoh, Masayuki Shigeta, Eiji Ikeda, Hiroshi Kinoshita, Shinkei Kakami
  • Braking device for elevator winding machine and elevator using the braking device
    Patent number: 5067593
    Abstract: A braking device for an elevator winding machine generates a braking force by contacting a rotary body driven by a rotary shaft of the winding machine with a brake section supported through the intermediary of an elastic body. The elastic body has a nonlinear elastic characteristic so that a starting shock to the passengers in the elevator car is prevented and the braking torque detecting accuracy is improved.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: November 26, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Masakatsu Tanaka, Masanobu Itoh, Noboru Arabori, Toshihiko Nara, Tastuhiko Takahashi, Katutaro Masuda, Mitsuo Saito
  • Elevator apparatus
    Patent number: 4982815
    Abstract: An elevator apparatus includes an electric motor for driving the elevator apparatus, an elevator cage adapted to be lifted or lowered by the electric motor, a brake device for holding and retaining an elevator driving system, including the electric motor, and a malfunction detecting device responsive to the application of a torque to a retainer section of the brake device during the lifting or lowering of the elevator cage.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: January 8, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Noboru Arabori, Hideaki Takahashi, Yoshio Sakai, Tsutomu Sano, Masao Nakazato, Masakatsu Tanaka, Katutaro Masuda, Mitsuo Saito, Yuji Toda