ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,121, issued on May 13, was assigned to TOKYO SEIMITSU Co. LTD. (Tokyo).
"Calibration method for optical rotation probe" was invented by Yoshiyuki Kawata (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The calibration method includes changing the emission direction of the measurement light to be emitted from the optical rotation probe by a minute angle from a reference direction set in advance, acquiring a shape error for a reference object after changing the emission direction by emitting the measurement light from the optical rotation probe toward the reference object while rotating the emission direction of the measurement light a...