Japan's Nikkei Stock Average index traded lower for the seventh straight session on earnings reports amid rising tensions in Spain and Italian debt markets. Nikkei 225 index declined 0.83% or 79.28 points and settled at 9,458.74. Sony Corp fell 4.5% after posting a record loss. Sharp Corp. plunged 3.2% after company reported a record annual loss of JPY 380 billion. European demand dependent Mazda Motors slipped 2.2%.