Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2005-07-12
2005-07-12
Goodrow, John (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S109400, C430S124300, C430S111400, C430S045320, C399S262000
Reexamination Certificate
active
06916587
ABSTRACT:
A toner including at least a binder resin; a colorant; and a charge controlling agent, in which the binder resin includes at least a polyester resin having a molecular weight distribution such that components having a molecular weight not greater than 500 are included in an amount of 4% by weight and at least a peak is present in a range of from 3,000 to 9,000 when measured by Gel Permeation Chromatography. In addition, the binder resin does not include a tetrahydrofuran-insoluble compound and the charge controlling agent is a resin charge controlling agent including at least units obtained from a monomer including a sulfonate group; an aromatic monomer including an electron absorption group; and an acrylic ester and/or a methacrylic ester monomer.
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XP00220394; Abstract;Derwent Publications Ltd., London, GB; May 18, 1993;Section CH, Week 199324.
Fushimi Hiroyuki
Katoh Kohki
Nanya Toshiki
Uchinokura Osamu
Yagi Shinichiro
Goodrow John
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh Company Limited
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