Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-07-22
2008-07-22
RoDee, Christopher (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C534S613000, C534S581000
Reexamination Certificate
active
07402369
ABSTRACT:
The present invention is to provide a charge controlling agent and negatively chargeable toner that do not contain any toxic metal, are essentially free from the risk of evoking ignition or explosion, and can exhibit a high charge amount and rapid initial increase in charging.The charge controlling agent is a mono azo iron complex compound represented by Formula (1):wherein J represents H, alkali metal, ammonium, or alkyl ammonium, or two or more of those elements in combination.
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Ito Masami
Nemoto Kazuo
Okubo Masaki
Otsuka Hideyuki
Yamada Eisuke
Hodogaya Chemical Co. Ltd.
Hoffmann & Baron , LLP
Rodee Christopher
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