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. 01, 2013
Filed:
Nov. 05, 2012
Fuji Xerox Co., Ltd., Tokyo, JP;
Takahiro Mizuguchi, Minamiashigara, JP;
Hiroshi Takano, Minamiashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A method for forming an electrostatic latent image developing toner including mixing in a stirring tank a resin particle dispersion with at least a colorant particle dispersion prepared by dispersing a colorant and in some cases with a release agent particle dispersion prepared by dispersing a release agent; aggregating in the stirring tank the resin particles with the pigment particles and the release agent particles to form aggregate particles; and then conducting heating in the stirring tank to fuse the aggregate particles, wherein the method further comprises during a fusion step, suppressing with an accumulation suppression unit accumulation of aggregate particles. The accumulation suppression unit is a magnetic field forming unit that forms a magnetic field either continuously or intermittently. The toner has an average sphericity of at least 0.94 but no more than 0.98 and particle characteristics as defined in the specification.