US Patent Issued to Canon on Sept. 2 for "Developing device, process cartridge, and electrophotographic image forming apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,550, issued on Sept. 2, was assigned to Canon K.K. (Tokyo).

"Developing device, process cartridge, and electrophotographic image forming apparatus" was invented by Takashi Koyanagi (Shizuoka, Japan), Kineo Takeno (Shizuoka, Japan) and Takuho Sato (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A developing device including: a developer; and a developing member configured to carry the developer on a surface thereof, the developing roller including an electro-conductive substrate and a single-layer elastic layer serving as a surface layer on the substrate, the surface layer comprising a binder resin, and the binder resin contains a cro...