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. 18, 2017
Filed:
Oct. 14, 2015
Konica Minolta, Inc., Tokyo, JP;
Aya Shirai, Hino, JP;
Tatsuya Nagase, Tachikawa, JP;
Junya Onishi, Hachioji, JP;
Tatsuya Fujisaki, Hino, JP;
Naoya Tonegawa, Sagamihara, JP;
Junichi Furukawa, Hachioji, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An electrostatic image developing toner includes toner particles that contain coloring particles containing a binder resin, a coloring agent and a releasing agent. The binder resin includes an amorphous resin and a crystalline polyester resin. The toner satisfies Relations (1) and (2). ΔH1 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step. ΔH2 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step. ΔH0 is the value of the amount of heat absorption based on a melting peak of the crystalline polyester resin in the second heating step, multiplied by the ratio of the crystalline polyester introduced in the electrostatic image developing toner.0.43<Δ1/Δ0<0.95  Relation (1):0.45<Δ2/Δ1<1.20  Relation (2):