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. 26, 1996
Filed:
Oct. 28, 1994
Takashige Kasuya, Soka, JP;
Tatsuya Nakamura, Tokyo, JP;
Makoto Kanbayashi, Kawasaki, JP;
Tatsuhiko Chiba, Kamakura, JP;
Kazuyuki Miyano, Tokyo, JP;
Koji Inaba, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A color toner for developing an electrostatic image has color toner particles containing a binder resin and a colorant. The color toner particles have been obtained by mixing a mixture containing at least a polymerizable monomer, the colorant and a polymerization initiator to prepare a polymerizable monomer composition, dispersing the polymerizable monomer composition in an aqueous medium to carry out granulation, and polymerizing polymerizable monomers in the aqueous medium. The colorant comprises fine organic pigment particles or fine organic dye particles having an acetic acid adsorption heat in n-heptane of from 0.1 mJ/m.sup.2 to 80 mJ/m.sup.2.