The yen was the favoured currency among traders on Thursday, rallying across the board amid speculation on the timing of potential shifts in BoJ policy.
The yen climbed to a one-week high versus the dollar at 116.75 and a one-month high against the euro at 139.26.
Meanwhile, economic data from the US was limited to weekly claims, which fell to 278k from 298k a week earlier.
The 4-wk average dropped to 282k versus the previous 283k figure.
Tomorrow will see the release of January durable goods orders, which is expected to decline 1.2% versus a 1.8% increase in the previous month.