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:
May. 29, 2018
Filed:
Feb. 22, 2017
Konica Minolta, Inc., Tokyo, JP;
Junya Onishi, Tokyo, JP;
Shiro Hirano, Tokyo, JP;
Noboru Ueda, Tokyo, JP;
Kouji Sugama, Tokyo, JP;
Aya Shirai, Tokyo, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
A process for producing a toner of the present invention includes: a first step of heating a dispersion containing an aqueous medium and a binder resin containing a crystalline resin to a temperature higher than or equal to a melting point of the crystalline resin; and a second step of maintaining the dispersion at temperature T (° C.) for 30 minutes or longer in a state where a pH of the dispersion is maintained at 5.5 or higher and 9.0 or lower, in which the temperature T satisfies the following expression, Rc−25≤T≤Rc−5, where the Rc represents a recrystallization temperature (° C.) of the crystalline resin.