Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2009-01-09
2010-12-28
Le, Hoa V (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S112000, C430S115000, C399S122000, C399S233000
Reexamination Certificate
active
07858284
ABSTRACT:
A liquid developer includes an insulation liquid, toner particles dispersed in the insulation liquid, which at least a part of the surface of each of the toner particles contains a rosin resin and a dispersant improving dispersibility of the toner particles in the insulation liquid, which the dispersant is consisted of a material having a predetermined amine value. The liquid developer described above has superior positive charge property of toner particles and which has superior dispersibility of the toner particles for a long period of time. Further, an image forming apparatus that can suitably use such a liquid developer is also provided.
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patent: 6447973 (2002-09-01), Asami et al.
patent: 2008/0118856 (2008-05-01), Ivanova
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patent: 3332961 (2002-10-01), None
Oki Masahiro
Teshima Takashi
DLA Piper (LLP) US
Le Hoa V
Seiko Epson Corporation
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