ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,126, issued on Feb. 17, was assigned to CANON K.K. (Tokyo).
"Light scanning apparatus and image forming apparatus" was invented by Yu Miyajima (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a light scanning apparatus wherein each of optical surfaces of an imaging optical element includes an effective portion on which a light flux traveling toward an effective region of a scanned surface is incident, and two non-effective portions provided on both sides in main scanning direction of effective portion, wherein, when each of a change in a sagittal line tilt amount and a change in a sagittal line curvature in main scanning di...