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. 21, 2017

Filed:

Sep. 16, 2016
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Futoshi Kadonome, Sagamihara, JP;

Satoshi Uchino, Hino, JP;

Shinya Obara, Fuchu, JP;

Noriyuki Kimpara, Toyohashi, JP;

Ikuko Sakurada, Hachioji, JP;

Takuya Takahashi, Higashimurayama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2006.01); G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/113 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09783 (2013.01); G03G 9/0819 (2013.01); G03G 9/08711 (2013.01); G03G 9/08755 (2013.01); G03G 9/0918 (2013.01); G03G 9/113 (2013.01);
Abstract

Provided is an electrostatic image developing toner including a toner mother particle containing a colorant and a binder resin comprising a crystalline resin and an amorphous resin; and an external additive. The external additive includes an inorganic fine particle having a number average major axis in a range of 50 to 100 nm, an average aspect ratio in a range of 3 to 10, and a volume resistivity in a range of 1×10to 1×10Ω·cm in primary particles.


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