Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2005-01-04
2005-01-04
Rodee, Christopher (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108600, C430S108700, C430S108900, C430S108100
Reexamination Certificate
active
06838218
ABSTRACT:
A black toner comprises a binder resin and black composite particles having an average particle diameter of 0.005 to 0.30 μm, and comprising: extender pigments as core particles; a gluing agent-coating layer formed on surface of the respective core particles; and a black pigment coat uniformly formed on the gluing agent-coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the extender pigments. Such a black toner using black composite particles having not only excellent blackness, fluidity and light resistance, but also an excellent dispersibility in binder resins, which toner also exhibits excellent blackness, fluidity and light resistance.
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Database WPI, Section Ch, Week 199028, Derwent Publications Ltd., AN 1990-212061, XP002214572 and JP 02 140758 A (Konica), May 30, 1990), Abstract.
Hayashi Kazuyuki
Iwasaki Keisuke
Morii Hiroko
Rodee Christopher
Toda Kogyo Corporation
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