ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,161, issued on May 6, was assigned to FANUC Corp. (Yamanashi, Japan).
"Machine tool and machine tool system" was invented by Yoshitsugu Ogawa (Yamanashi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A machine tool includes: a door that opens and closes an opening in a shield cover surrounding a machining chamber; an electromagnetic lock device that includes dual-system switches that detect an open/closed state of the door, and that can lock the door in a closed state; a door position detection unit that detects a position of the door; and a report unit that monitors states of the dual-system switches of the electromagnetic lock device and su...