The yen weakened on Monday as risk appetite improved with the rise in oil prices and Japan.
The dollar climbed to a two-week high against a basket of currencies on Friday.
The yen fell as investors sold it on speculation that the Bank of Japan could decide to expand its monetary stimulus as soon as next month.
The dollar fell against a currency basket for the first time in seven days on Wednesday.
The yen slid to a nearly two-week low against the dollar on Tuesday as risk appetite improved for a second straight session.
The yen hit a 10-day low after Japan's finance minister said Tokyo was ready to intervene in the currency market if needed.
China's foreign exchange reserves rose in April to $3.22-trillion, making the second consecutive monthly increase of the year.
The dollar rose against a basket of currencies after William Dudley told the NYT the Fed may raise interest rates twice in 2016.
Peter Alexander of Z-Ben Advisors, talks about investment opportunities in China, and weighs in on comments made by Donald Trump about China trade.
The dollar rose against a basket of currencies for a third day on Thursday.
The China Caixin services PMI came in at 51.8 for April, continuing to show expansion, but marking a moderation from March's 52.2.
A key pulse check on China's economy is likely to show the services sector hummed along in April, but a broader slowdown looms, economist Li Wei warns.
The dollar rose, rebounding from recent lows against the yen and euro.
Hedge fund manager Kyle Bass said that unconventional policies and negative rates aren't working for the Bank of Japan.
The yen jumped to a 18-month high against the dollar, extending gains that have undermined Japanese officials' attempts to reflate Japan's economy.
As the U.S. dollar fell to its lowest since January 2015, currency experts told CNBC the currency's decline had further to run.
The Bank of Japan made a “fateful miscalculation” when it opted to hold interest rates at its meeting last week, Goldman Sachs has said.
The dollar recovered slightly on Monday from its biggest weekly fall in more than seven years against the yen.
China's manufacturing activity expanded in April, but only marginally, official data showed Sunday, raising doubts about the pickup's sustainability.
The yen built further on a round of strong gains since the Bank of Japan meeting, moving to an 18-month high against the dollar.