Patents by Inventor Masashi Kawarasaki

Masashi Kawarasaki 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 system having drive motor located between elevator car and hoistway sidewall
    Patent number: 7874404
    Abstract: An elevator system includes a hoistway defined by a surrounding structure. An elevator car and counterweight are located in the hoistway, and a drive motor is located between the elevator car and a sidewall of the hoistway. The drive motor drivingly couples and suspends the elevator car and counterweight via at least one flat rope or belt.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: January 25, 2011
    Assignee: Otis Elevator Company
    Inventors: Frank W. Adams, Leandre Adifon, Pedro Baranda, Marc Chevilliard, Jean-Noel Cloux, Masashi Kawarasaki, Yutaka Matsumoto, Jean-Pierre Menard, Jean-Pierre Pougny, Bruce St. Pierre
  • Adjustable double-deck elevator
    Patent number: 5907136
    Abstract: A double deck elevator (1) includes a linking mechanism (14) disposed between the cars (2, 3).
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: May 25, 1999
    Assignee: Otis Elevator Company
    Inventors: Masaharu Hongo, Shusaku Shibasaki, Masashi Kawarasaki, Mitsuo Soekawa, Yuzo Tada, Seiichi Hayashida
  • Roping method of an elevator
    Patent number: 5226507
    Abstract: An elevator is provided having a car, with a ceiling defined by a width and a depth, a counterweight, a plurality of ropes, a pair of first sheaves, a pair of second sheaves, and a pair of third sheaves. The car and the counterweight are connected by a plurality of ropes extending from the car to the first sheave, and then to the second sheave, then to the third sheave, and finally to the counterweight. The sheaves are positioned inside the hoistway, outside of the projected horizontal area of the ceiling of the car and therefore not directly above the ceiling in the hoistway.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: July 13, 1993
    Assignee: Otis Elevator Company
    Inventor: Masashi Kawarasaki