Japan's Nikkei Stock Average fluctuated between gains and losses on Thursday as Bernake indicated the Fed will step up in bond purchases in case it is needed. However, gains were erased by disappointing earnings reports from Japanese companies. Nikkei 225 closed flat at 9,561.83. Canon lost 2.2% after reporting a 11% gain in quarterly net income. Heavyweight Fanuc tumbled 6.1% after its 6.7% quarterly profit gain missed analyst estimates. Mobile operator KDD added 1.5% after saying its profit may reach JPY 250 billion this year.