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:
Nov. 11, 2025
Filed:
Apr. 16, 2024
Kyocera Document Solutions Inc., Osaka, JP;
Yuko Iwashita, Osaka, JP;
Jun Azuma, Osaka, JP;
Keiji Maruo, Osaka, JP;
Kazuaki Ezure, Osaka, JP;
Yuichi Yoshida, Osaka, JP;
Kazutaka Sugimoto, Osaka, JP;
Yasuhiro Oishi, Osaka, JP;
Kazunari Hamasaki, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles each include a metal oxide particle and a surface treatment layer covering at least a part of the surface of the metal oxide particle. The surface treatment layers contain a component derived from an organic siloxane compound and at least one of aluminum oxide and silica. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid with a carbon number of at least 8 and no greater than 20 and a second repeating unit derived from a diamine compound with a cycloalkane structure.