Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Reexamination Certificate
2006-04-24
2009-06-30
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
Reexamination Certificate
active
07553599
ABSTRACT:
A toner, a method of and an apparatus for preparing a permanently-charged electret toner, including discharging a solution or dispersion including a resin and a colorant through a nozzle vibrating at a constant frequency to form a droplet; applying a direct potential to an electrode facing the nozzle to positively or negatively charge the droplet by an induction phenomenon to form a charged droplet; and drying and solidifying the charged droplet to be permanently charged.
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Le Hoa V
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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