ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,101, issued on Dec. 9, was assigned to HITACHI LTD. (Tokyo).
"Elevator apparatus" was invented by Yuki Saito (Tokyo), Akira Iwamoto (Tokyo) and Hiroki Matsuura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator has a power outage operation function including an emergency stop device that is provided in the elevator car, and a drive mechanism that is configured to drive the emergency stop device. An electric actuator is configured to actuate the drive mechanism, and a control device is configured to control an operation of the car. The electric actuator includes a movable element mechanically connected to the drive mechanism, electromag...