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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.:

US 12572088 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Apr. 25, 2023

Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Masayuki Shinozuka, Chiba, JP;

Koji Takahashi, Chiba, JP;

Yasuo Kojima, Chiba, JP;

Motoya Yamada, Chiba, JP;

Assignee:

CANON KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

VENABLE LLP

Primary Examiner:

Mark F Huff

Assistant Examiner:

Boone Alexander Evans

Int. Cl.
CPC ...
G03G 5/10 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 5/102 (2013.01); G03G 21/1814 (2013.01);
Abstract

An electrophotographic photosensitive member comprises: a support having a cylindrical shape; and a photosensitive layer, wherein the support has a surface formed of Al and/or an Al alloy, and includes Al crystal grains having: (α) a plane at −15° or more and less than +15° with respect to a {001} orientation; (β) a plane at −15° or more and less than +15° with respect to a {101} orientation; and (γ) a plane at −15° or more and less than +15° with respect to a {111} orientation, and wherein a ratio of an area occupied by the Al crystal grain having the (α) to a total area of the surface of the support is 10% or less, and a ratio of an area occupied by the Al crystal grain having the (γ) to the total area of the surface of the support is more than 10%.

Find Patent Forward Citations

Shinozuka, Masayuki. (2026). Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus (U.S. Patent No. 12572088). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12572088

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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