TOKYO (Standard&Poor's) Sept. 9, 2010--Standard&Poor's Ratings Services said today that it had assigned its 'A+' long-term debt ratings to the U.S. dollar-denominated straight bonds issued by Bank of Tokyo-Mitsubishi UFJ Ltd. (A+/Stable/A-1). NEW RATINGS Issue Rating US$750 mil. 1.60% due Sept. 11, 2013 A+ US$1,250 mil. 2.45% due Sept. 11, 2015 A+