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:
Jun. 18, 2013
Filed:
Nov. 11, 2010
Tomohito Ozawa, Mishima, JP;
Kazuyoshi Akiyama, Mishima, JP;
Yuu Nishimura, Suntou-gun, JP;
Daisuke Tazawa, Yokohama, JP;
Tomohito Ozawa, Mishima, JP;
Kazuyoshi Akiyama, Mishima, JP;
Yuu Nishimura, Suntou-gun, JP;
Daisuke Tazawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member includes a photoconductive layer, an intermediate layer, and a surface layer. When Si+C atom density in the surface layer is represented by D×10atoms/cm, the Dis 6.60 or more, and when the maximal value of H/(Si+H) in a distribution of hydrogen quantity in the photoconductive layer in a layer thickness direction is represented by H, the average value of the H/(Si+H) in the second photoconductive region is represented by H, the Dand the Hsatisfy the following expression (1) and the Dand the Hsatisfy the following expression (2).≧0.07×−0.38  Expression (1)≦0.04×+0.60  Expression (2)