The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
May. 10, 2021
Nok Corporation, Tokyo, JP;
Shogo Suzuki, Kanagawa, JP;
Atsushi Ikeda, Kanagawa, JP;
Satoshi Fukuoka, Kanagawa, JP;
Kenji Sasaki, Kanagawa, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A conductive roller includes: a core member including an outer surface along and about an axial line thereof; and a surface layer arranged along the outer surface of the core member. The surface layer includes a conductive portion formed of a conductive resin composition, and a surface roughness imparting material in a form of particles dispersed in the conductive portion. An average particle size of the surface roughness imparting material is in a range of 6 micrometers or greater and 10 micrometers or less. The number of particles of the surface roughness imparting material per unit area of the surface layer is in a range of 1.0×10particles per mmor greater and 2.0×10particles per mmor less. An average thickness of the surface layer is in a range of 3.0 micrometers or greater and 15.0 micrometers or less.