ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,875, issued on July 1, was assigned to STANLEY ELECTRIC Co. LTD. (Tokyo).

"Optical scanning device which detects a deflection angle of a mirror unit based on outputs from light detectors" was invented by Mamoru Miyachi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical scanning device includes a control unit, a light deflector, light detection units, and a light source. A mirror unit of the light deflector has a flat reflection part for generating scanning light and a groove-shaped reflection part for generating twice reflected light, and performs reciprocating rotation about a rotation axis. The light detection units are disposed at po...