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:
Jan. 29, 2008
Filed:
Jun. 05, 2007
Manabu Ohno, Shizuoka-ken, JP;
Motoya Fukushima, Shizuoka-ken, JP;
Hitoshi Itabashi, Kanagawa-ken, JP;
Yasushi Katsuta, Shizuoka-ken, JP;
Emi Tosaka, Shizuoka-ken, JP;
Norikazu Fujimoto, Shizuoka-ken, JP;
Manabu Ohno, Shizuoka-ken, JP;
Motoya Fukushima, Shizuoka-ken, JP;
Hitoshi Itabashi, Kanagawa-ken, JP;
Yasushi Katsuta, Shizuoka-ken, JP;
Emi Tosaka, Shizuoka-ken, JP;
Norikazu Fujimoto, Shizuoka-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The toner having a significantly improved dispersibility of a colorant in toner particles is provided. The present invention provides a dry toner comprising: (i) a binder resin; (ii) a colorant; (iii) at least one of metallophthalocyanine and a metallophthalocyanine derivative having a central metal selected from the group consisting of Cr, Fe, Co, Ni, Zn, Mn, Mg, and Al; and (iv) a polymer containing 0.5 to 20% by mass of a base unit derived from a specific polymerizable monomer having an amide group.