ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,636, issued on March 25, was assigned to STAR MICRONICS Co. LTD. (Shizuoka, Japan).
"Lathe with chuck" was invented by Takayuki Ishikawa (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lathe capable of facilitating maintenance of a chucking mechanism. A chuck operating apparatus includes a claw and a shifter to open and close a chuck provided on a spindle. The tilt claw provided outside the spindle has a first posture to bring the chuck into the opened state and a second posture to bring the chuck into the closed state. The shifter provided outside the spindle and movable in a spindle axis direction is brought in a first position ...