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. 25, 2018

Filed:

Jun. 21, 2017
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Naohiko Tsuchida, Tokyo, JP;

Yasutaka Akashi, Yokohama, JP;

Yuzo Tokunaga, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/12 (2006.01); G03G 9/135 (2006.01); G03G 9/13 (2006.01); G03G 15/10 (2006.01);
U.S. Cl.
CPC ...
G03G 9/122 (2013.01); G03G 9/132 (2013.01); G03G 9/135 (2013.01); G03G 9/1355 (2013.01); G03G 15/10 (2013.01);
Abstract

A liquid developer comprising a toner particle containing a binder resin and a carbon black, a toner particle dispersing agent, and a carrier liquid, wherein amounts of group 15 elements, group 16 elements, and group 17 elements on a surface of the carbon black are respectively 0.1 atomic percent or less with respect to a total amount of elements on the carbon black surface.


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