Patents by Inventor Yasuo Kido

Yasuo Kido 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).

  • Hydraulic elevator
    Patent number: 4534452
    Abstract: Disclosed is a hydraulic elevator in which the load and/or the oil temperature are detected under the running condition of a cage of the hydraulic elevator and a proper value of the deceleration delay time corresponding to this running condition is obtained to thereby control the flow of pressure-oil on the basis of the proper value of the deceleration delay time. Various values of the deceleration delay time are stored in advance in the form of table with respect to various values of load and oil temperature.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: August 13, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Ogasawara, Ken Ichiryu, Ichiro Nakamura, Yasuo Kido
  • Hydraulic elevator
    Patent number: RE33171
    Abstract: Disclosed is a hydraulic elevator in which the load and/or the oil temperature are detected under the running condition of a cage of the hydraulic elevator and a proper value of the deceleration delay time corresponding to this running condition is obtained to thereby control the flow of pressure-oil on the basis of the proper value of the deceleration delay time. Various values of the deceleration delay time are stored in advance in the form of table with respect to various values of load and oil temperature.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: February 27, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Ogasawara, Ken Ichiryu, Ichiro Nakamura, Yasuo Kido