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:
Oct. 19, 2010
Filed:
Feb. 06, 2009
Akira Hashimoto, Shizuoka, JP;
Yojiro Hotta, Chiba, JP;
Wakashi Iida, Ibaraki, JP;
Kazuhiko Hayami, Ibaraki, JP;
Hirohide Tanikawa, Shizuoka, JP;
Yasuhiro Ichikawa, Kanagawa, JP;
Akira Hashimoto, Shizuoka, JP;
Yojiro Hotta, Chiba, JP;
Wakashi Iida, Ibaraki, JP;
Kazuhiko Hayami, Ibaraki, JP;
Hirohide Tanikawa, Shizuoka, JP;
Yasuhiro Ichikawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to a toner which has good property such as fixability, coloring power, developability, durability, and environmental stability and so on. More specifically, the present invention relates to a color toner containing at least a binder resin, a colorant, and a wax, in which: a wax concentration of an extract obtained by dispersing the toner into n-hexane at a concentration of 15 mg/cmat 23° C. and by subjecting the resultant dispersion to extraction treatment at 23° C. for 1 minute is in the range of 0.080 to 0.500 mg/cm; an average circularity of particles each having a circle-equivalent diameter of 3 μm or more in the toner is in the range of 0.925 to 0.965; and a content of the wax is in the range of 1 to 15 parts by mass with respect to 100 parts by mass of the binder resin.