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:
Dec. 02, 2008
Filed:
Apr. 25, 2007
Koji Abe, Numazu, JP;
Shinya Yachi, Mishima, JP;
Emi Tosaka, Shizuoka-ken, JP;
Satoshi Handa, Shizuoka-ken, JP;
Kazumi Yoshizaki, Shizuoka-ken, JP;
Yasuhiro Hashimoto, Mishima, JP;
Yushi Mikuriya, Numazu, JP;
Koji Abe, Numazu, JP;
Shinya Yachi, Mishima, JP;
Emi Tosaka, Shizuoka-ken, JP;
Satoshi Handa, Shizuoka-ken, JP;
Kazumi Yoshizaki, Shizuoka-ken, JP;
Yasuhiro Hashimoto, Mishima, JP;
Yushi Mikuriya, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner is provided which is excellent in low-temperature fixability and offset resistance, has a wide fixing temperature range, provides fixed images with high gloss, and can form toner images having high quality. The toner is composed of toner particles having toner base particles each containing a binder resin and a colorant. When the viscosities of each of the toner particles measured at 100° C. and 110° C. by a flow tester heat-up method are represented by η(Pa·s) and η(Pa·s), respectively, an average variation in viscosity Arepresented by the following equation (1) satisfies the relationship of 0≧A≧−0.064:=(log(η)−log(η)/(110−100); and  (1)