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. 12, 2013
Filed:
Sep. 07, 2011
Applicants:
Tetsuya Taguchi, Kanagawa, JP;
Hirokazu Hamano, Kanagawa, JP;
Masahiro Takagi, Kanagawa, JP;
Tsuyoshi Murakami, Kanagawa, JP;
Inventors:
Tetsuya Taguchi, Kanagawa, JP;
Hirokazu Hamano, Kanagawa, JP;
Masahiro Takagi, Kanagawa, JP;
Tsuyoshi Murakami, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A developer for electrostatic photography, includes: a toner containing toner particles containing a colorant and a binder resin, and an external additive having a number average particle diameter of about 100 nm or more and about 800 nm or less; and rugged particles having a rate of ruggedness represented by formula (1) of about 30% or more and about 70% or less:Rate of Ruggedness=100−(Projected area/Envelope area)×100  (1).