Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-08-01
2011-10-25
Rodee, Christopher (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108100, C430S108600, C430S108700, C430S111310
Reexamination Certificate
active
08043781
ABSTRACT:
A toner comprising a small-particle diameter external additive having a number average particle diameter of 7 to 20 nm, a large-particle diameter external additive having a number average particle diameter of 40 to 80 nm and a toner particle having a volume average particle diameter of 4 to 7 μm, wherein the large-particle diameter external additive is stuck to the surface of the toner particles in a semi-embedded state and has a rate of liberation of 0.1% by weight or less from the surface of the toner particle.
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Japanese Office Action mailed Jul. 21, 2009 in corresponding JP application 2007-201075.
Bito Takahiro
Imafuku Tatsuo
Satoh Takeshi
Fraser Stewart
Nixon & Vanderhye P.C.
Rodee Christopher
Sharp Kabushiki Kaisha
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