He also said that regulations will be rolled back, but it was unclear if the remarks related specifically to the aviation sector or to the broader US economy.
A University of MI report is likely to show that its consumer sentiment index slipped to 97.9 in February from 98.5 last month.
"Japan's monetary policy is aimed at stabilizing prices and attaining a 2 percent inflation goal as soon as possible, not targeting stability in foreign-exchange rates", BOJ Gov. Haruhiko Kuroda said late last month.
Against the yen, the chief gainer from a wobble in global risk appetite earlier this week, it was up 0.2 percent at 113.48 yen, having risen as high as 113.75 yen.
The euro was little changed at $1.0666 after losing 0.4 percent the previous day. The data showing rising USA wholesale inventories and an unexpectedly low number of Americans filing for unemployment benefits also pushed up the dollar and US bond yields.
European shares ended at their highest level in two weeks on Thursday, with some major companies such as France's second-biggest listed bank Societe Generale and oil major Total advancing after their results.
US equities notched fresh record highs on Thursday thanks to comments from President Donald Trump that specific tax reform plans - something "phenomenal" in his words - would be announced in the next two or three weeks.
The Dow Jones Industrial Average advanced 118.06 points or 0.6 percent to 20,172.40, the Nasdaq Composite climbed 32.73 points or 0.6 percent to 5,715.18 and the S&P 500 gained 13.20 points or 0.6 percent to 2,307.87.
The contract rose 66 cents, or 1.3 percent, to close at $53 a barrel on Thursday. "We're way ahead of schedule", he said after a meeting with airline bosses.
French 10-year government bond yields fell below 1.0 percent for the first time in two weeks.
Crude oil prices extended gains, with US prices bolstered by evidence that gasoline demand could strengthen in the world's biggest oil market.
Cameco Corp. rose 2.6 per cent even after it reported on Thursday a lower-than-expected quarterly profit, hurt by weak uranium prices.
USA crude added 0.1 percent to $53.06 a barrel. The Bank does not see that a recession is likely in the economy and it expects rates to remain steady.
Gold prices, meanwhile, took a hit and kept on reeling Friday, with gold futures for April delivery falling $11 to $1,225.80 per ounce.