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:
Nov. 08, 2005
Filed:
Apr. 10, 2003
Tomohito Taniguchi, Shizuoka, JP;
Hiroshi Inoue, Kanagawa, JP;
Hiroyuki Osada, Kanagawa, JP;
Seiji Tsuru, Shizuoka, JP;
Hisao Kato, Kanagawa, JP;
Noriaki Kuroda, Shizuoka, JP;
Atsushi Ikeda, Ibaraki, JP;
Toshihiro Otaka, Ibaraki, JP;
Shinji Doi, Kanagawa, JP;
Tomohito Taniguchi, Shizuoka, JP;
Hiroshi Inoue, Kanagawa, JP;
Hiroyuki Osada, Kanagawa, JP;
Seiji Tsuru, Shizuoka, JP;
Hisao Kato, Kanagawa, JP;
Noriaki Kuroda, Shizuoka, JP;
Atsushi Ikeda, Ibaraki, JP;
Toshihiro Otaka, Ibaraki, JP;
Shinji Doi, Kanagawa, JP;
Canon Kasei Kabushiki Kaisha, Ibaraki-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a conductive member having a support and provided thereon at least one cover layer, the cover layer has a surface layer, and the surface layer contains fine particles. In the surface layer, fine particles present at the surface-layer lower part corresponding to a range within 30% of the total layer thickness from the lowermost plane have an average particle diameter which is larger than the average particle diameter of fine particles present at the surface-layer upper part corresponding to a range within 30% of the total layer thickness from the uppermost plane. A process cartridge and an electrophotographic apparatus have such a conductive member.