Electrostatic charge image developing toner

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

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C430S108700

Reexamination Certificate

active

07488561

ABSTRACT:
Disclosed is an electrostatic charge image developing toner containing external additives comprising at least amorphous silica and a crystallized metal oxide selected from titanium oxide, aluminum oxide, zirconium oxide, or calcium oxide, wherein the amorphous silica is present on the crystallized metal.

REFERENCES:
patent: 7208252 (2007-04-01), Grande et al.
patent: 2003/0165761 (2003-09-01), Arai et al.
patent: 2005/0147908 (2005-07-01), Yamane et al.
patent: 2003-192940 (2003-09-01), None

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