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:
May. 21, 2013
Filed:
Nov. 18, 2010
Kazuyoshi Akiyama, Mishima, JP;
Tomohito Ozawa, Mishima, JP;
Daisuke Tazawa, Yokohama, JP;
Yuu Nishimura, Suntou-gun, JP;
Kazuyoshi Akiyama, Mishima, JP;
Tomohito Ozawa, Mishima, JP;
Daisuke Tazawa, Yokohama, JP;
Yuu Nishimura, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an electrophotographic photosensitive member including a photoconductive layer, an intermediate layer made of hydrogenated amorphous silicon carbide on the photoconductive layer, and a surface layer made of hydrogenated amorphous silicon carbide on the intermediate layer, wherein a ratio (C/(Si+C); C2) in the surface layer is 0.61 to 0.75, and a sum of atom density of silicon and carbon is 6.60×10atoms/cmor more, a ratio (C/(Si+C); C1) and a sum (D1) of atom density of silicon and carbon in the intermediate layer increase continuously from the photoconductive layer toward the surface layer without exceeding C2 and D2, and the intermediate layer has a continuous region in which C1 is 0.25 to C2 while D1 is 5.50×10to 6.45×10atoms/cm, the region being 150 nm or larger in a layer thickness direction, and an electrophotographic apparatus equipped therewith.