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:
Jan. 03, 2012
Filed:
Jan. 10, 2008
Xiaorong Qin, Wuhan, CN;
Lin Wu, Wuhan, CN;
Zeguan Lan, Wuhan, CN;
Hubei Dinglong Chemical Co., Ltd., Wuhan, CN;
Abstract
Discussed herein are a charge control agent and toner comprising said charge control agent. Said toner of the invention is comprised of a resin, a colorant, and the charge control agent, wherein, said charge control agent is comprised of a specific type of metal complexes. In the invention, the charge control agent has excellent charge control properties and the characteristics of uniform crystalline size, high charge speed, high thermo stability, low moisture absorption, and good compatibility with resin. The toner of the invention has excellent electrical characteristics and produces stable image of high quality under a wide range of environmental conditions without dusting and fogging.