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:
May. 26, 2020
Filed:
Nov. 21, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Tatsuya Yamaai, Yokohama, JP;
Kazunori Noguchi, Suntou-gun, JP;
Shuhei Iwasaki, Yokohama, JP;
Akira Sakakibara, Susono, JP;
Daisuke Miura, Tokyo, JP;
Harunobu Ogaki, Suntou-gun, JP;
Takumi Furukawa, Susono, JP;
Yuya Tomomizu, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 21/18 (2006.01); G03G 5/06 (2006.01); G03G 15/00 (2006.01); G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
G03G 21/1814 (2013.01); G03G 5/0614 (2013.01); G03G 15/0233 (2013.01); G03G 15/75 (2013.01);
Abstract
Provided is a process cartridge having a charging member and an electrophotographic photosensitive member to be charged by being in contact with the charging member, wherein the electrophotographic photosensitive member has a support and a photosensitive layer in this order, and a surface layer of the electrophotographic photosensitive member has a Martens hardness of 230 N/mmor less.