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. 13, 2012
Filed:
Aug. 12, 2009
Yuki Sasaki, Kanagawa, JP;
Masaki Hirakata, Kanagawa, JP;
Hideo Maehata, Kanagawa, JP;
Hirotaka Matsuoka, Kanagawa, JP;
Yuki Sasaki, Kanagawa, JP;
Masaki Hirakata, Kanagawa, JP;
Hideo Maehata, Kanagawa, JP;
Hirotaka Matsuoka, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A polyester resin for electrostatic image developing toner includes: two or more polyester blocks, and the polyester resin satisfying the following conditions (A) to (C): (A) an ester concentration of the polyester resin is about 0.01 or more and less than about 0.1; (B) a weight average molecular weight of the polyester resin is about 24,000 or more; and (C) a difference in SP values of at least two kinds of the two or more polyester blocks is about 0.1 to about 0.7.