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.

Date of Patent:
Dec. 18, 2018

Filed:

Apr. 28, 2017
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Kosuke Nakamura, Hachioji, JP;

Satoshi Uchino, Hino, JP;

Futoshi Kadonome, Sagamihara, JP;

Koji Shibata, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/113 (2006.01); G03G 9/087 (2006.01); G03G 9/107 (2006.01);
U.S. Cl.
CPC ...
G03G 9/1133 (2013.01); G03G 9/08755 (2013.01); G03G 9/08797 (2013.01); G03G 9/1075 (2013.01); G03G 9/1131 (2013.01); G03G 9/1139 (2013.01);
Abstract

Provided is a carrier for electrostatic charge image development which provides a two-component developer having a high electric charge amount, a suppressed variation in an electric charge amount caused by an environmental change, and excellent durability, even if a low temperature fixable toner is used. A carrier for electrostatic charge image development of the present invention includes: carrier particles in which a core particle surface is coated with a coating material containing a resin, wherein the coating material contains phosphorus element, and the resin contains structural units derived from an alicyclic (meth)acrylic acid ester compound.


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