ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,684, issued on March 25, was assigned to Canon K.K. (Tokyo).

"Magnetic carrier, two-component developer, and replenishment developer" was invented by Ryuji Murayama (Chiba, Japan), Hironori Minagawa (Ibaraki, Japan), Yuto Onozaki (Saitama, Japan) and Nobuhiro Yoshida (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic carrier including: a magnetic core; and a coating resin that coats a surface of the magnetic core, wherein the resin coating layer has a thickness of 50 nm or more, a coating resin, which forms the resin coating layer, contains a resin S having an organosilicon polymer moiety, and when a surface and a position at a...