SOMERSET, N.J., Aug. 9, 2004--NanoOpto Corp., which is developing nanofabrication technology to produce optical components and systems, announced that it has closed on an additional $3.3 million in venture financing, completing the final phase of its Series B round. The funding is from existing equity partners Morgenthaler Ventures, US Trust's Excelsior Venture Partners III LLC, Draper Fisher Jurvetson Gotham Ventures, New England Ventures, Bessemer Venture Partners and the Harris & Harris Group., which increased its share. 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