ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,839, issued on Dec. 30, was assigned to Canon K.K. (Tokyo).

"Process cartridge and process cartridge set" was invented by Shohei Kototani (Shizuoka, Japan), Dai Nozaki (Shizuoka, Japan), Masashi Uno (Shizuoka, Japan), Kenji Ookubo (Shizuoka, Japan) and Yuichi Kikuchi (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process cartridge includes a charging unit, (I) wherein the charging unit includes a conductive member, wherein the conductive member includes a conductive layer disposed on an outer surface of a support, the conductive layer has a matrix-domain structure including a matrix and a plurality of domains, the matrix contains ...