The dollar edged up to 83.27 yen in Tokyo morning trade from 83.24 yen in New York late Wednesday.

The euro fetched $1.3151 against $1.3150 the previous day. The single European currency gained to 109.51 yen from 109.42 yen.

Private payrolls firm ADP on Wednesday reported a sharp rise in hiring in the US private sector ahead of Friday's keenly-awaited monthly unemployment figures.

The upbeat ADP report fuelled the market's appetite for risk and spurred sales of safe-haven US Treasuries, dealers said.

"The dollar maintained its strength after the healthy ADP numbers drove up US Treasury yields and bolstered dollar purchases," said Tohru Sasaki, strategist at JPMorgan Chase Bank in Tokyo.

"Since December, a series of data have indicated an improvement in the US economy."

But the dollar's gain was limited in Tokyo as the market was still awaiting Friday's US employment report, dealers said.

Some investors remained cautious over Friday's non-farm payrolls data despite the strong ADP numbers, a senior dealer at a major European bank in Tokyo told Dow Jones Newswires.