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:
May. 13, 2014
Filed:
May. 16, 2007
Noriyuki Mizutani, Kanagawa, JP;
Shinya Nakashima, Kanagawa, JP;
Takeshi Iwanaga, Kanagawa, JP;
Takafumi Koide, Kanagawa, JP;
Susumu Yoshino, Kanagawa, JP;
Noriyuki Mizutani, Kanagawa, JP;
Shinya Nakashima, Kanagawa, JP;
Takeshi Iwanaga, Kanagawa, JP;
Takafumi Koide, Kanagawa, JP;
Susumu Yoshino, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The invention provides a toner for electrostatic image development having a binder resin containing a amorphous polyester resin and a crystalline polyester resin, and a coloring agent, and satisfying the following relationship (1):()>()>()  (1)wherein SP(H) is the solubility parameter of a resin contained in an elution fraction F (0-10) from the beginning of elution of Wuntil 10% of elution of Wwhen Wis the whole area of an elution curve on a gel permeation chromatograph measured for an acetone-soluble fraction; SP(L) is the solubility parameter of a resin contained in an elution fraction F (80-100) from 80% to 100% of the elution of W; and SP(C) is the solubility parameter of the crystalline polyester resin.