Asian share markets crept higher on Tuesday as Tokyo scored another 15-year peak, though gains were hostage to what Federal Reserve Chair Janet Yellen might say later in the day about the likely lift-off date for U.S. rate hikes. The Nasdaq (.IXIC) ended Monday up 0.1 percent, while the Dow (.DJI) fell 0.1 percent and the S&P 500 (.SPX) lost 0.03 percent.