ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,143, issued on Dec. 2, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Elevator control device" was invented by Hidetaka Ishiguro (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a control device for an elevator including: a first control unit configured to control a hoisting machine configured to raise and lower a car and a counterweight in a hoistway; and a second control unit configured to obtain a generation torque which is a torque to be generated by the hoisting machine, and to limit the obtained generation torque to be generated by the hoisting machine so that the obtained generation torque is lower than an abnormal torque...