Patent 7291663 was granted and assigned to Sumitomo Rubber Industries on November, 2007 by the United States Patent and Trademark Office.
A conductive roller or a conductive belt is composed of a conductive elastomer composition including a polymer composition having a plurality of carbon-to-carbon double bonds and containing not less than 40 mol % of ethylene oxide; an organometallic salt containing a fluoro group or/and a sulfonyl group; and an elastomer having a plurality of carbon-to-carbon double bonds.