ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,745, issued on Oct. 21, was assigned to BROTHER KOGYO K.K. (Nagoya, Japan).

"Image forming apparatus including main housing, first drum cartridge having first photosensitive drum, and second drum cartridge having second photosensitive drum" was invented by Shougo Sato (Seto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image forming apparatus includes: a main housing; a first drum cartridge including a first photosensitive drum; a second drum cartridge including a second photosensitive drum; a first toner cartridge to be coupled to the first drum cartridge; and a second toner cartridge to be coupled to the second drum cartridge. The first...