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:
Nov. 03, 2015

Filed:

Sep. 13, 2013
Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Yasuo Kadokura, Kanagawa, JP;

Emi Matsushita, Kanagawa, JP;

Hiroyoshi Okuno, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2006.01); G03G 9/093 (2006.01); G03G 9/08 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09321 (2013.01); G03G 9/0819 (2013.01); G03G 9/09371 (2013.01); G03G 9/09392 (2013.01); G03G 9/09725 (2013.01); G03G 15/0865 (2013.01);
Abstract

An electrostatic charge image developing toner includes a toner particle including a core particle containing a polyester resin and a coating layer containing a vinyl resin that coats the surface of the core particle, and an external additive that is formed of silica particles having an average circularity of from 0.75 to 0.9 and an average value of ratios of circle equivalent diameters Da obtained by a plane image analysis to the maximum height H obtained by a stereoscopic image analysis of more than 1.5 and less than 1.9.


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