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:
Apr. 21, 2015
Filed:
Dec. 04, 2012
Tomomi Oshiba, Tokyo, JP;
Tomoko Mine, Tokyo, JP;
Hitomi Motani, Tokyo, JP;
Saburou Hiraoka, Tokyo, JP;
Tomomi Oshiba, Tokyo, JP;
Tomoko Mine, Tokyo, JP;
Hitomi Motani, Tokyo, JP;
Saburou Hiraoka, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
The production process is a process for producing a toner for electrostatic image development. The process has an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion with fine particles of a binder resin dispersed in an aqueous medium, and an aggregation terminating step of adding an aggregation terminating agent into the dispersion. The aggregation terminating agent is composed of a compound having at least one of a structure (1) represented by a formula (1) and a structure (2) represented by a formula (2). In the formulae (1) and (2), Rto Reach independently represent a hydrogen atom, a hydroxy group or an organic group. At least one of Rand Ror at least one of Rand Rrepresents a hydroxy group.