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. 02, 2015
Filed:
Mar. 01, 2012
Atsushi Fujii, Yokohama, JP;
Hideaki Matsuoka, Mishima, JP;
Haruyuki Tsuji, Yokohama, JP;
Nobuhiro Nakamura, Mishima, JP;
Kazuhisa Shida, Mishima, JP;
Atsushi Fujii, Yokohama, JP;
Hideaki Matsuoka, Mishima, JP;
Haruyuki Tsuji, Yokohama, JP;
Nobuhiro Nakamura, Mishima, JP;
Kazuhisa Shida, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
To provide a process for producing an electrophotographic photosensitive member that can not easily cause any fog due to an increase in dark attenuation, a conductive layer is formed with use of a coating liquid for conductive layer prepared with use of a solvent, a binder material and metal oxide particles. The metal oxide particles (P) and binder material (B) in the coating liquid for conductive layer are in a mass ratio (P/B) of from 1.5/1.0 to 3.5/1.0. The metal oxide particle is a titanium oxide particle coated with tin oxide doped with phosphorus or tungsten. Where powder resistivity of the metal oxide particle is represented by x (Ω·cm) and powder resistivity of the titanium oxide particle as a core particle constituting the metal oxide particle is represented by y (Ω·cm), the y and the x satisfy the following relations (i) and (ii):5.0×10≦5.0×10  (i)1.0×10≦1.0×10  (ii).