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:
Nov. 06, 2012
Filed:
Nov. 17, 2009
Applicants:
Hitomi Akiyama, Kanagawa, JP;
Junichi Tomonaga, Kanagawa, JP;
Yasunobu Kashima, Kanagawa, JP;
Inventors:
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magenta electrostatic developing toner includes binder resin particles that do not contain a coloring agent or a release agent and has a shape factor SFof about 110 or less, the number of the binder resin particles being about 50 or less per 5,000 electrostatic developing toner particles; and inorganic particles that have a median diameter of about 5 nm to about 70 nm in an amount of about 0.01 mass % to about 0.4 mass % based on the mass of the electrostatic developing toner; and a magenta coloring agent that has an azo group.