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:
Oct. 23, 2018
Filed:
Dec. 17, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Sosuke Yamaguchi, Yokohama, JP;
Masaki Yamada, Mishima, JP;
Hideya Arimura, Suntou-gun, JP;
Kazuhiro Yamauchi, Suntou-gun, JP;
Satoru Nishioka, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a member for electrophotography that is not reduced in charge-providing performance even by its long-term storage and use under a high-temperature and high-humidity environment, and is hence conducive to the formation of a high-quality electrophotographic image. The member for electrophotography includes: an electroconductive substrate; and an electroconductive layer, in which: the electroconductive layer contains a resin having a cationic organic group in a molecule thereof and an anion; a total sum of contents of an alkali metal and an alkali earth metal in the electroconductive layer is 500 ppm or less; and the anion includes at least one selected from the group consisting of a fluorosulfonate anion, a fluorocarboxylate anion, a fluorosulfonylimide anion, a fluorosulfonylmethide anion, a fluoroalkylfluoroborate anion, a fluorophosphate anion, a fluoroantimonate anion, and a fluoroarsenate anion.