ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,989, issued on April 14, was assigned to Brother Kogyo K.K. (Nagoya, Japan).

"Process cartridge including frame having photosensitive drum, drum coupling and flange fixed to photosensitive drum" was invented by Naoya Kamimura (Ichinomiya, Japan) and Atsuhisa Nakashima (Obu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The image forming apparatus includes a drum cartridge having a photosensitive drum and a drum drive input member; a developing cartridge configured to be movably mounted to the drum cartridge, the developing cartridge comprising a developing roller disposed so as to face the photosensitive drum and a developing drive input mem...