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:
Feb. 16, 2021
Filed:
Oct. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Kumiko Takizawa, Saitama, JP;
Tsuyoshi Shimada, Kashiwa, JP;
Takanori Ueno, Nagareyama, JP;
Ikuyo Kuroiwa, Tokyo, JP;
Haruhiko Mitsuda, Nagareyama, JP;
Kan Tanabe, Matsudo, JP;
Tatsuya Ikezue, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an electrophotographic photosensitive member that can achieve both of abrasion resistance and the suppression of a ghost. The electrophotographic photosensitive member includes: a support; an undercoat layer; a charge-generating layer; and a charge-transporting layer, the undercoat layer, the charge-generating layer, and the charge-transporting layer being arranged in the stated order on the support, wherein the charge-transporting layer includes a charge-transporting substance, and a polymer containing a structure represented by the following general formula (1) and a structure represented by the following general formula (2), wherein the charge-generating layer includes a phthalocyanine crystal and a binder resin, and wherein the undercoat layer includes strontium titanate particles and a binder resin.