Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-05-20
2008-05-20
Dote, Janis L. (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S110300, C430S110400, C430S137100, C430S137190
Reexamination Certificate
active
07374848
ABSTRACT:
A toner including a binder; a colorant; and a wax, wherein the binder includes a polyester resin; and a reaction product of a polymer having a group capable of reacting with an active hydrogen with a compound having an active hydrogen, wherein the polyester resin includes tetrahydrofuran(THF)-soluble resin components in an amount of from 50 to 85% by weight; and chloroform-insoluble components in an amount of from 0 to 30% by weight, and wherein the toner satisfies the following relationship (1):in-line-formulae description="In-line Formulae" end="lead"?5% by weight<(C1-C2)<60% by weight (1)in-line-formulae description="In-line Formulae" end="tail"?wherein C1 represents a content of chloroform-insoluble components in the toner in units of % by weight and C2 represents a content of the colorant therein in units of % by weight.
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Inoue Ryohta
Matsuoka Sonoh
Ohki Masahiro
Takada Takeshi
Tanaka Chiaki
Dote Janis L.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh Company Limited
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