ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,936, issued on Feb. 10, was assigned to RIVERFIELD INC. (Tokyo).
"Rotation position detection unit" was invented by Naoya Morita (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotation position detector includes a motor having a drive shaft extending along a first axis, a drive-side pulley that is connected to the drive shaft, a holder that holds a treatment tool to be inserted into a patient during surgery, the holder rotating in association with the drive-side pulley, a driven-side pulley that rotates around the first axis, a diameter of the drive-side pulley being smaller than a diameter of the driven-side pulley, a transmission belt tha...