Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
2011-01-25
2011-01-25
Chapman, Mark A (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
C430S058800
Reexamination Certificate
active
07875411
ABSTRACT:
A photoreceptor with a substrate, a charge generating layer, a charge transport layer including N,N,N′N′-tetra(4-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine, having a purity of from about 95 percent to about 100 percent, and a protective overcoating layer, optionally including a hole transport material other than N,N,N′N′-tetra(4-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine, that will discharge from about 85% to about 100% of its surface potential in from 0 to about 40 milliseconds upon being subjected to xerographic charging and exposure to radiant energy of from about 1 erg/cm2to about 5 ergs/cm2.
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Aziz Hany
Coggan Jennifer A.
De Jong Kathy L.
Hor Ah-Mee
Hu Nan-Xing
Chapman Mark A
Oliff & Berridg,e PLC
Xerox Corporation
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