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:
Jul. 18, 2017
Filed:
Feb. 04, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Daisuke Tanaka, Yokohama, JP;
Kazumichi Sugiyama, Numazu, JP;
Takeshi Murakami, Numazu, JP;
Daisuke Kawaguchi, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member includes an undercoat layer, the undercoat layer having a volume resistivity of from 1×10Ω·cm to 1×10Ω·cm, the undercoat layer contains (A) a zinc oxide particle and (B) at least one particle selected from titanium oxide particles coated with tin oxide doped with any one of zinc, aluminum, fluorine, tungsten, niobium, tantalum, and phosphorus and a titanium oxide particle coated with oxygen deficient tin oxide, and the content of the particle (B) in the undercoat layer is from 3% by mass to 20% by mass based on the content of the particle (A).