Electrophotography – Image formation – Development
Reexamination Certificate
2011-05-03
2011-05-03
Brase, Sandra L (Department: 2884)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07937026
ABSTRACT:
An object of the present invention is to provide a liquid developing electrographic device roller suppressed in volumetric variation caused by a carrier. As a means for solving the problems, the present invention provides a liquid developing electrophotographic device roller including a shaft and an elastic material layer provided around the outer peripheral side of the shaft, wherein the elastic material layer is formed by using a polyurethane obtained by reacting a polyester polyol with a difunctional isocyanate.
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Nagami Harushi
Nagase Takayuki
Nakamura Sadaharu
Sanda Hiroshi
Bando Chemical Industries Ltd.
Brase Sandra L
The Webb Law Firm
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