Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Harushi Nagami0
Hiroshi Sanda0
Sadaharu Nakamura0
Takayuki Nagase0
Date of Patent
May 3, 2011
Patent Application Number
12306365
Date Filed
June 19, 2007
Patent Primary Examiner
Patent 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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