Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-03-10
2009-06-23
Goodrow, John 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...
C430S137140, C399S159000
Reexamination Certificate
active
07550242
ABSTRACT:
A toner having a core containing a colorant, a release agent and a binder resin (A), and a shell containing a binder resin (B), the shell overlying the core, wherein the binder resin (A) contains a resin having a polyester skeleton, the binder resin (B) contains a vinyl copolymer resin, and a weight ratio of the shell to the core is from 0.05 to 0.5, and wherein the toner has a volume average particle diameter of from 3 to 8 μm; a toner manufacturing method of such the toner can be used in an image forming apparatus and in a process cartridge.
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Nakamura Minoru
Nozaki Chiyoshi
Nozaki Tsuyoshi
Yamamoto Atsushi
Yasunaga Hideaki
Goodrow John L
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh Company Limited
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