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. 04, 2013
Filed:
Mar. 01, 2012
Nobuhiro Nakamura, Mishima, JP;
Hideaki Matsuoka, Mishima, JP;
Atsushi Fujii, Yokohama, JP;
Haruyuki Tsuji, Yokohama, JP;
Kazuhisa Shida, Mishima, JP;
Nobuhiro Nakamura, Mishima, JP;
Hideaki Matsuoka, Mishima, JP;
Atsushi Fujii, Yokohama, JP;
Haruyuki Tsuji, Yokohama, JP;
Kazuhisa Shida, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member is provided in which black spots on an output image are hardly caused by local charge injection from a support to a photosensitive layer. For this purpose, a conductive layer is formed using a coating liquid for a conductive layer prepared using a solvent, a binder material and a metal oxide particle that satisfies the following relation (i): 45≦A×ρ×D≦65 (i) wherein A denotes the surface area of the metal oxide particle per unit mass [m/g], D denotes the number average particle diameter of the metal oxide particle [μm], and ρ denotes the density of the metal oxide particle [g/cm]. The metal oxide particle is a titanium oxide particle coated with tin oxide doped with phosphorus.