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.
Patent No.:
Date of Patent:
Jul. 12, 2016
Filed:
May. 20, 2011
Katsuyuki Kitajima, Kanagawa, JP;
Yutaka Saito, Kanagawa, JP;
Michio Take, Kanagawa, JP;
Yoshifumi Iida, Kanagawa, JP;
Motoko Sakai, Kanagawa, JP;
Katsuyuki Kitajima, Kanagawa, JP;
Yutaka Saito, Kanagawa, JP;
Michio Take, Kanagawa, JP;
Yoshifumi Iida, Kanagawa, JP;
Motoko Sakai, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
A toner for developing an electrostatic image, including: toner particles containing at least a binder resin, a release agent, and a colorant; and an external additive having a volume average particle diameter (d) of from 70 nm to 400 nm, a ratio (d/σ) of the volume average particle diameter (d) to a standard deviation (σ) of a volumetric basis particle diameter of from 2.0 to 12, and an average circularity of from 0.5 to 0.9.