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. 09, 2012
Filed:
Oct. 26, 2009
Mikio Kouyama, Tokyo, JP;
Kenji Hayashi, Tokyo, JP;
Hiroaki Obata, Tokyo, JP;
Noriyuki Kimpara, Tokyo, JP;
Hiroshi Nagasawa, Tokyo, JP;
Mikio Kouyama, Tokyo, JP;
Kenji Hayashi, Tokyo, JP;
Hiroaki Obata, Tokyo, JP;
Noriyuki Kimpara, Tokyo, JP;
Hiroshi Nagasawa, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
A preparation method of a toner comprising a binder resin and a colorant is disclosed, comprising forming resin particles containing a resin formed by allowing a styrene monomer, a (meth)acryl monomer and a polymer represented by the formula (1) to react, and mixing the resin particles with colorant particles which were dispersed and allowing the resin particles and the colorant particle to coagulate and fuse to form toner particles,X—(Y)—X  formula (1)wherein X is at least one of an acryloyl group and a methacryloyl group, Y is a radical polymerizable monomer unit and n is an integer of 25 to 1000.