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:
Dec. 13, 2022
Filed:
May. 14, 2020
Applicant:
Fujifilm Business Innovation Corp., Tokyo, JP;
Inventors:
Masahiro Iwasaki, Kanagawa, JP;
Wataru Yamada, Kanagawa, JP;
Keisuke Kusano, Kanagawa, JP;
Yuto Okazaki, Kanagawa, JP;
Taisuke Fukui, Kanagawa, JP;
Assignee:
FUJIFILM Business Innovation Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/147 (2006.01); G03G 15/00 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 5/14726 (2013.01); G03G 15/75 (2013.01); G03G 21/1803 (2013.01);
Abstract
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer on the conductive substrate. The outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin particles, a fluorine graft polymer, and an acidic compound having an acid dissociation constant (pKa) of 3 or less in water at 25° C. The amount of the acidic compound relative to the outermost surface layer is 100 ppm or more and 10000 ppm or less.