The dollar fell to 109.10 yen at one point, its weakest against its Japanese counterpart since October 2014. The dollar last traded at 109.17 yen, down 0.6 percent on the day.
The euro slid 0.6 percent against the yen to about 124.42 yen.
Against the greenback, the euro held steady at $1.1398, not far from a 5-1/2-month high of $1.1438 touched last week.
The dollar index, which tracks the greenback against a basket of six major currencies, stood at 94.419 after plumbing 94.239 on Wednesday, its lowest since October last year.
Minutes from the Fed's March 15-16 policy meeting suggested that the central bank appears unlikely to raise interest rates before June due to widespread concern among policymakers over their limited ability to counter the blow of a global economic slowdown.
Reference: Reuters
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