ALEXANDRIA, Va., March 5 -- United States Patent no. 12,242,223, issued on March 4, was assigned to BROTHER KOGYO K.K. (Nagoya, Japan).
"Drum cartridge including movable electrical contact surface, and image-forming apparatus using the same" was invented by Nao Itabashi (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drum cartridge includes: a photosensitive drum rotatable about an axis extending in a first direction; a first drum frame to which a developing cartridge is attachable; and a second drum frame having an outer surface; and a memory having an electrical contact surface. The first drum frame is at one end portion of the drum cartridge in a second direction and the second drum frame ...