US Patent Issued to CANON on Feb. 3 for "Toner supply roller, developing apparatus, electrophotographic image forming apparatus and process cartridge" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,541,171, issued on Feb. 3, was assigned to CANON K.K. (Tokyo).

"Toner supply roller, developing apparatus, electrophotographic image forming apparatus and process cartridge" was invented by Ryosuke Takayama (Shizuoka, Japan) and Hiroaki Komatsu (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrophotographic roller includes: a conductive substrate; and a foamed layer on an outer circumferential surface of the substrate, in which the foamed layer is a surface layer of the electrophotographic roller, the foamed layer has a skeleton including a binder resin, and at least one conductive particle in the binder resin, the foamed layer has...