The dollar was trading at 118.72 yen midafternoon, up slightly from 118.67 yen late Wednesday in New York. The euro fell to US$1.3360 from US$1.3367.
Shuichi Kanehira, a senior trader at Mizuho Corporate Bank, said he expects the dollar to stay in a range from 117 yen to 120 yen.
"There's a feeling that the dollar's upside potential is limited" against the yen, given concerns about the health of the U.S. economy, he said. "But it's not falling much, either. That makes me think that the market is still directionless."
But some traders said the euro remained bullish, backed by the prospects of more interest rate increases by the European Central Bank.
The market was awaiting U.S. jobs data, traders said. Economists surveyed by Dow Jones Newswires expect that U.S. employers, excluding farmers, hired a net 150,000 workers in March, after adding 97,000 people in the previous month.
The dollar was mixed against other regional currencies, slipping to 9,106 Indonesian rupiah from 9,126 the previous day, while climbing to 43.140 Indian rupee from 42.86. It declined to 932.9 South Korean won from 936.2.