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:
Apr. 08, 2014
Filed:
Mar. 12, 2008
Tsuyoshi Nozaki, Ikeda, JP;
Chiyoshi Nozaki, Otsu, JP;
Atsushi Yamamoto, Kawanishi, JP;
Mitsuyo Matsumoto, Ibaraki, JP;
Takuya Kadota, Kobe, JP;
Katsunori Kurose, Takarazuka, JP;
Yoshimichi Ishikawa, Itami, JP;
Tsuyoshi Nozaki, Ikeda, JP;
Chiyoshi Nozaki, Otsu, JP;
Atsushi Yamamoto, Kawanishi, JP;
Mitsuyo Matsumoto, Ibaraki, JP;
Takuya Kadota, Kobe, JP;
Katsunori Kurose, Takarazuka, JP;
Yoshimichi Ishikawa, Itami, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Disclosed is a non-magnetic toner for use in developing electrostatic toner image, wherein the toner is produced by a toner production method that includes: dispersing in an aqueous medium an organic dispersion liquid that comprises in an organic solvent a pigment, a binder resin and/or a binder resin precursor, and a releasing agent; removing the organic solvent to prepare a dispersion slurry in which toner particles are dispersed in the aqueous medium; heating the dispersion slurry to a temperature equal to or higher than the melting point of the releasing agent; and washing the toner particles.