ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,668, issued on March 17, was assigned to Canon K.K. (Tokyo).
"Exposure head and image forming apparatus" was invented by Daisuke Akagi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exposure head configured to expose a photosensitive drum includes: a substrate; a plurality of strip-shaped semiconductor chips each including a plurality of light emitting elements that emit light and a drive circuit that drives the light emitting element, the plurality of semiconductor chips being arranged on the substrate; and a lens array configured to collect light from the light emitting elements on the photosensitive drum. The drive circuit operates bet...