The yen strengthened in Asian trade Wednesday after the Bank of Japan announced an open-ended easing programme and adopted a new inflation target, in line with market expectations.
In Tokyo deals the greenback bought 88.46 yen, against 88.68 yen in New York late on Tuesday, while the euro fetched 117.75 yen from 118.14 yen.
The single currency eased to $1.3311 from $1.3321.
The BoJ on Tuesday said it would adopt a two percent inflation goal demanded by the country's new government in a bid to beat the deflation that has haunted the world's third-largest economy for years.
It also unveiled an unlimited asset-purchase scheme -- similar to the US Federal Reserve's quantitative easing -- to start next year as part of a plan to achieve that goal, widely seen as bowing to pressure from Tokyo.
However, dealers were largely underwhelmed, with some analysts criticising the inflation target's vague timeline and saying 13 trillion yen in planned monthly asset purchases was unlikely to save the limp economy.
The announcement brought an end to the yen's recent fall against the dollar and euro, which began in November when Shinzo Abe said ahead of a general election he eventually won that he would press for more aggressive BoJ easing.
The bank last month expanded its now 101 trillion yen asset-purchase programme (APP), its third major policy move since September after similar measures from its US and European counterparts.
Abe has since moved to bring BoJ policies into line with his new government's plan for big spending and aggressive monetary policy to stoke growth, which Germany's top central banker on Monday derided as "disturbing" meddling in BoJ matters.
The hawkish premier on Tuesday described the independent central bank's policies, outlined in a rare BoJ-government statement, as "epoch making".
However, London-based Capital Economics said that "calling a policy 'bold' does not necessarily make it so".
"Tuesday's policy overhaul by the Bank of Japan disappointed the markets -- and rightly so," it said in a note.
It is "debatable whether the new 'open-ended' easing will result in any more asset purchases than would have happened anyway under the current policy of steadily increasing the ceiling on the APP".
The euro, meanwhile, has won a measure of support after a German survey showed investor sentiment in Europe's biggest economy had hit the highest levels since the start of the eurozone debt crisis in 2010.
The dollar was mostly stronger against other Asia-Pacific currencies, rising to Sg$1.2282 from Sg$1.2270 on Tuesday, to 9,660 Indonesian rupiah from 9,655 rupiah, and to 53.73 Indian rupees from 53.54 rupees.
The greenback also rose to 1,065.82 South Korean won from 1,063.20 won, to 29.77 Thai baht from 29.75 baht, and to Tw$29.01 from Tw$28.99, while it was flat at 40.62 Philippine pesos.
The Australian dollar weakened to $1.0538 from $1.0550, while China's yuan fetched 14.22 yen from 14.34 yen.