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.

Date of Patent:
Nov. 03, 2026

Filed:

Aug. 22, 2023
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Koji Takahashi, Chiba, JP;

Motoya Yamada, Chiba, JP;

Shubun Kujirai, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 7/00 (2006.01);
U.S. Cl.
CPC ...
G03G 7/0086 (2013.01); G03G 7/0053 (2013.01); G03G 2221/183 (2013.01);
Abstract

An electrophotographic photosensitive member comprising a support, an electroconductive layer, an undercoat layer, a charge generating layer, and a hole transporting layer in this order, wherein when an ionization potential of the electroconductive layer is defined as IPc, the IPc is 5.4 to 5.8 eV, and when an ionization potential of the undercoat layer is defined as IPu, the IPu is 6.0 eV or more, wherein the undercoat layer comprises an electron transporting compound and a compound (α), and when an ionization potential of the compound (α) is defined as IPα, the IPc, the IPu, and the IPα satisfy relation (1):  (1).


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Takahashi, Koji. (2026). Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus (U.S. Patent No. 12782837). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12782837

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

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