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. 18, 2008
Filed:
Aug. 26, 2004
Applicant:
Katsutomo Tanaka, Tokyo, JP;
Inventor:
Katsutomo Tanaka, Tokyo, JP;
Assignee:
Zeon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/093 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing a polymerized toner, which comprises steps of forming an aqueous dispersion comprising the colored polymer particles, subjecting the aqueous dispersion comprising the colored polymer particles to stripping treatment in the presence of a nonionic surfactant, dehydrating and washing the aqueous dispersion, wherein washing is carried out by using a washing water a temperature of which is controlled to lower than the cloud point of the nonionic surfactant, drying the wet colored polymer particles, and then getting the colored polymer particles.