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:
Mar. 20, 2018
Filed:
Mar. 13, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Shinsuke Mochizuki, Yokohama, JP;
Kenichi Nakayama, Numazu, JP;
Masashi Kawamura, Yokohama, JP;
Tsuneyoshi Tominaga, Suntou-gun, JP;
Kunihiko Nakamura, Gotemba, JP;
Tsutomu Shimano, Mishima, JP;
Takayuki Toyoda, Suntou-gun, JP;
Shiro Kuroki, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner having a toner particle which contains a binder resin, a fatty acid metal salt, and a resin having an ionic functional group, in which the fatty acid metal salt is a fatty acid metal salt of a polyvalent metal with valency of 2 or higher and a fatty acid with carbon atom number of at least 8 and not more than 28, and the acid dissociation constant pKa of the resin having an ionic functional group is at least 6.0 and not more than 9.0.