US 12,306,560 B2
Electrophotographic member and electrophotographic image forming apparatus
Yuji Kitano, Kanagawa (JP); Makoto Souma, Kanagawa (JP); Naoko Kasai, Kanagawa (JP); Yutaro Yoshida, Kanagawa (JP); Masatsugu Toyonori, Kanagawa (JP); and Yasutomo Tsuji, Saitama (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 14, 2024, as Appl. No. 18/441,115.
Claims priority of application No. 2023-025006 (JP), filed on Feb. 21, 2023; and application No. 2024-006660 (JP), filed on Jan. 19, 2024.
Prior Publication US 2024/0288800 A1, Aug. 29, 2024
Int. Cl. G03G 15/16 (2006.01); C08K 3/22 (2006.01); C08L 33/08 (2006.01)
CPC G03G 15/162 (2013.01) [C08K 3/22 (2013.01); C08L 33/08 (2013.01); C08K 2003/2231 (2013.01); C08K 2201/001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrophotographic member having a base layer and a surface layer,
wherein the surface layer comprises
a binder resin; and
a plurality of particles comprising a conductive tin oxide, in the binder resin,
a content ratio of the particles comprising a conductive tin oxide, in the surface layer, is 2.0 to 10.0 vol %, and
a value of an L function denoting a relationship of a distribution of the particles comprising a conductive tin oxide, as observed from a surface of the surface layer, is always positive in a range of 300 nm to 1 μm of a distance from barycentric coordinates of the particles.