US Patent Issued to CANON on Nov. 4 for "Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,458, issued on Nov. 4, was assigned to CANON K.K. (Tokyo).

"Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus" was invented by Hideharu Shimozawa (Tokyo), Kaname Watariguchi (Kanagawa, Japan) and Kenichi Kaku (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an electrophotographic photosensitive member including a support, an undercoat layer, a charge-generating layer, and a charge-transporting layer in the stated order, wherein with regard to an S0, an S1, an S2, an S3, and an S4 determined by a specific procedure (A), a ratio S1/S0 is 0.34 or less, and one of the S2, the S3, or...