US 12,105,435 B2
Conductive roller
Shogo Suzuki, Kanagawa (JP); Satoshi Fukuoka, Kanagawa (JP); and Kenji Sasaki, Kanagawa (JP)
Assigned to NOK CORPORATION, Tokyo (JP)
Appl. No. 18/016,971
Filed by NOK CORPORATION, Tokyo (JP)
PCT Filed May 10, 2021, PCT No. PCT/JP2021/017768
§ 371(c)(1), (2) Date Jan. 19, 2023,
PCT Pub. No. WO2022/018934, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 2020-123485 (JP), filed on Jul. 20, 2020.
Prior Publication US 2023/0288835 A1, Sep. 14, 2023
Int. Cl. G03G 15/02 (2006.01); G03G 15/08 (2006.01); G03G 15/16 (2006.01)
CPC G03G 15/0233 (2013.01) [G03G 15/0818 (2013.01); G03G 15/1685 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A conductive roller comprising:
a base including an outer surface along and about an axial line thereof; and
a surface layer arranged on the outer surface of the base, wherein:
the base includes a core member and a conductive elastic layer arranged between the core member and the surface layer,
the surface layer includes particles,
a ten-point height of irregularities Rz of the outer surface of the base is greater than or equal to 6.0 micrometers and less than or equal to 8.0 micrometers,
a ten-point height of irregularities Rz of an outer surface of the surface layer is greater than or equal to 5.5 micrometers and less than or equal to 5.8 micrometers, and
a thickness of the conductive elastic layer is greater than or equal to 0.5 millimeters and less than or equal to 5 millimeters.