BOSTON, Nov. 23, 2010 /PRNewswire-FirstCall/ -- Eaton Vance Corp. (NYSE: EV) earned $0.41 per diluted share in the fourth quarter of fiscal 2010 compared to earnings per diluted share of $0.39 in the fourth quarter of fiscal 2009 and $0.34 in the third quarter of fiscal 2010. Earnings were re