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. 01, 2011
Filed:
Jun. 05, 2007
Kaori Sato, Neyagawa, JP;
Masashi Yasumatsu, Neyagawa, JP;
Kaori Sato, Neyagawa, JP;
Masashi Yasumatsu, Neyagawa, JP;
Orient Chemical Industries, Ltd., Osaka, JP;
Abstract
A toner for developing an electrostatic image comprises a binding resin for a toner and a charge control agent including an azo-type iron complex salt represented by the following chemical formula (1) (in the chemical formula (1), Rand Rare the same or different to each other and are an alkyl group having a straight chain or a branch chain of 3 to 8 carbons; R, R, Rand Rare the same or different to each other and are selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group, a halogen atom, a nitro group and a carboxyl group; Aindicates m(H)+n(K)+p(Na), which m, n and p satisfy numerical equations of m+n+p=1, 0.7≦m≦1, 0≦n≦0.3 and 0≦p≦0.3), wherein an average particle size thereof is 1 to 4 microns, and a specific volume resistivity thereof is ranging from 0.2×10to 7×10Ω·cm.