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:
Feb. 07, 2023
Filed:
Jul. 21, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Takeshi Murakami, Yokohama, JP;
Kazunori Noguchi, Suntou-gun, JP;
Harunobu Ogaki, Oyama, JP;
Kenta Kamikura, Yokohama, JP;
Yuzo Seino, Gotemba, JP;
Takashi Kenmoku, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a process cartridge detachably attachable to a main body of an electrophotographic apparatus, the process cartridge including: a developing unit including a toner; and an electrophotographic photosensitive member, wherein the toner includes a toner particle, the toner particle has a surface containing a polyvalent acid metal salt particle, and a surface layer of the electrophotographic photosensitive member contains at least one metal oxide particle among an aluminum oxide particle, a silicon dioxide particle, and a tin oxide particle.