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:
Feb. 27, 2018
Filed:
Sep. 30, 2016
Konica Minolta, Inc., Tokyo, JP;
Noriyuki Kimpara, Toyohashi, JP;
Satoshi Uchino, Hino, JP;
Shinya Obara, Fuchu, JP;
Futoshi Kadonome, Sagamihara, JP;
Ikuko Sakurada, Hachioji, JP;
Takuya Takahashi, Higashimurayama, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An electrostatic latent image developing toner of the present invention includes toner base particles and particles containing a fatty acid metal salt. The toner base particles contain a crystalline resin containing a segment of a first resin and a segment of a second resin chemically bonded to each other and an amorphous resin containing at least the second resin. The crystalline resin is a hybrid crystalline polyester resin. The first resin is a crystalline polyester resin. The second resin is an amorphous resin. The volume-based median diameter (Da) of the toner base particles and the volume-based median diameter (Db) of the particles containing the fatty acid metal salt satisfy the relations represented by Expressions (1) and (2) below:0.5 μm≦≦2.0 μm  Expression (1)0.1≦0.5.  Expression (2)