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:
Mar. 02, 2021
Filed:
Oct. 17, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Ikuyo Kuroiwa, Tokyo, JP;
Kumiko Takizawa, Saitama, JP;
Tsuyoshi Shimada, Kashiwa, JP;
Kan Tanabe, Matsudo, JP;
Haruhiko Mitsuda, Nagareyama, JP;
Takanori Ueno, Nagareyama, JP;
Tatsuya Ikezue, Toride, JP;
Wataru Kitamura, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member includes a support, an undercoat layer, a photosensitive layer, and a surface layer, the undercoat layer containing a binder resin and strontium titanate particles, the surface layer being a cured film of a composition containing at least one compound selected from a guanamine compound and a melamine compound, and a charge transport material having at least one substituent selected from —OH, —OCH, —NH, —SH, and —COOH.