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:
Jun. 30, 2015
Filed:
Feb. 18, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yuko Katsumoto, Yokohama, JP;
Akiko Kitao, Kawasaki, JP;
Taichi Shintou, Saitama, JP;
Takeshi Miyazaki, Ebina, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The present invention provides a toner excellent in light resistance. The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent. wherein Rand Reach independently represent an alkyl group or an acyl group, or Rand Rmay be bonded to each other so as to form a cyclic organic functional group containing, as a hetero atom, a nitrogen atom to which Rand Rare bonded; Rand Reach independently represent an alkyl group; Rand Reach independently represent an alkyl group or an alkoxy group; Rrepresents a hydrogen atom, an alkyl group or an alkoxy group; and Rrepresents an alkyl group.