ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,894, issued on July 29, was assigned to Canon K.K. (Tokyo).
"Optical scanning apparatus and image forming apparatus" was invented by Chihiro Shirakawa (Shizuoka, Japan) and Hiroyuki Fukuhara (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical scanning apparatus includes a light source, a polygon mirror including a plurality of reflecting surfaces configured to reflect light emitted from the light source, the polygon mirror being configured to be rotated around a rotary shaft, and a casing configured to accommodate the light source and the polygon mirror. The casing defines a first space that accommodates the polygon mirror and...