Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Reexamination Certificate
2008-11-18
2010-10-26
Le, Hoa V (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
C430S137180, C430S137190, C430S137200
Reexamination Certificate
active
07820353
ABSTRACT:
A method for producing a toner, including at least the following steps: step (A): pulverizing a negatively chargeable charge control resin that does not soften at a temperature of 180° C. or lower to an average particle size of from 0.05 to 2 μm; step (B): melt-kneading at least a pulverized product of the negatively chargeable charge control resin obtained in the step (A), a resin binder, and a colorant; and step (C): pulverizing a melt-kneaded product obtained in the step (B) and classifying the pulverized product. The toner obtained according to the present invention is suitably used in, for example, the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.
REFERENCES:
patent: 7348120 (2008-03-01), Eida et al.
patent: 7384721 (2008-06-01), Eida et al.
patent: 7422833 (2008-09-01), Niwa et al.
patent: 7442482 (2008-10-01), Eida
patent: 7449275 (2008-11-01), Eida
patent: 7553600 (2009-06-01), Kawamura et al.
patent: 2005/0233237 (2005-10-01), Eida et al.
patent: 2006/0093942 (2006-05-01), Eida
patent: 2007/0003857 (2007-01-01), Eida et al.
patent: 2007/0287090 (2007-12-01), Eida et al.
patent: 2008/0247787 (2008-10-01), Yoshida et al.
patent: 2010/0121023 (2010-05-01), Fukui et al.
patent: 2002-40717 (2002-02-01), None
patent: 2003-280266 (2003-10-01), None
patent: 2006-154026 (2006-06-01), None
U.S. Appl. No. 11/264,555, filed Nov. 4, 2008, Ashizawa, et al.
Ashizawa Takeshi
Eida Akihiro
Kao Corporation
Le Hoa V
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
LandOfFree
Method for producing toner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing toner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing toner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4151844