ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,764, issued on March 18, was assigned to STAR MICRONICS Co. LTD. (Shizuoka, Japan).
"Lathe" was invented by Takayuki Ishikawa (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A chuck operating apparatus includes a claw, a shifter, and a shifter drive unit. The rotatable claw 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 rotatable shifter is brought in a first position to bring the claw into the first posture and in a second position to bring the claw into the second posture. The shifter drive unit has a shifter lever having an insertion part provided wi...