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. 24, 2026
Filed:
Aug. 23, 2022
Applicant:
Sharp Kabushiki Kaisha, Sakai City, JP;
Inventors:
Akiko Kihara, Sakai City, JP;
Kohichi Toriyama, Sakai City, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai City, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 5/047 (2006.01); G03G 5/05 (2006.01); G03G 5/06 (2006.01);
U.S. Cl.
CPC ...
G03G 5/047 (2013.01); G03G 5/0564 (2013.01); G03G 5/06142 (2020.05);
Abstract
This electrophotographic photoreceptor includes at least a laminated photoreceptive layer, in which a charge generating layer and a charge transporting layer are laminated in this order on a conductive base. The charge transporting layer contains at least a charge transporting substance, a binder resin, and silica particles, and contains 0.1 ppm or more and 20 ppm or less of Na element and/or 0.01 ppm or more and 10 ppm or less of K element.