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:
Jul. 16, 2019
Filed:
Apr. 05, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Ikuyo Kuroiwa, Tokyo, JP;
Kumiko Takizawa, Saitama, JP;
Tsuyoshi Shimada, Toride, JP;
Eileen Takeuchi, Toride, JP;
Wataru Kitamura, Abiko, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/18 (2006.01); G03G 5/14 (2006.01);
U.S. Cl.
CPC ...
G03G 21/1814 (2013.01); G03G 5/142 (2013.01); G03G 5/144 (2013.01); G03G 2215/00957 (2013.01);
Abstract
There is provided an electrophotographic photosensitive member in which the variation in potential during repeated use is reduced. The electrophotographic photosensitive member is the electrophotographic photosensitive member of which an undercoat layer comprises a urethane resin and titanium oxide particles whose primary particle and secondary particle diameters are defined.