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:
Sep. 08, 2015

Filed:

Oct. 31, 2012
Applicant:

Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;

Inventors:

Takafumi Hara, Shizuoka-ken, JP;

Masahiro Ikuta, Shizuoka-ken, JP;

Tsuyoshi Itou, Shizuoka-ken, JP;

Motonari Udo, Shizuoka-ken, JP;

Kazuhisa Takeda, Shizuoka-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/00 (2006.01); G03G 9/08 (2006.01); G03G 9/09 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0804 (2013.01); G03G 9/0819 (2013.01); G03G 9/08782 (2013.01); G03G 9/09 (2013.01); G03G 9/0926 (2013.01); G03G 9/0928 (2013.01);
Abstract

An electrophotographic toner produced by mixing a dispersion of colorant particles containing a colorant and a dispersion of release agent particles containing a release agent and having a volume average particle diameter smaller than that of the colorant particles, aggregating the colorant particles and the release agent particles in the dispersion to produce first aggregates, mixing a dispersion of resin particles containing a binder resin and having a volume average particle diameter smaller than that of the release agent particles in the dispersion containing the first aggregates, and aggregating the first aggregates and the resin particles in the dispersion of the first aggregates and the resin particles to coat the first aggregates with the resin particles, producing second aggregates.


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