ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,141, issued on Dec. 2, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Elevator hall operation panel" was invented by Hideyuki Ogawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "In the modernization of a hall display device, the number of cables connected to operating equipment may increase since the shape and the number of pushbuttons, indicators and the like are changed. In this case, it is necessary to further process a hole at the worksite for passing the cables in accordance with the number of cables, which makes the work complicated. In the present invention, a frame having an opening in the center is fixed to a hall wall, and a fr...