With the July Group of Eight summit in Okinawa drawing near, the dollar appears likely to remain locked between 105 yen and 110 yen through much of the coming month and beyond.

A leading concern on the currency market in recent weeks has been higher U.S. interest rates.

The U.S. Federal Reserve raised the key interest rates by 50 basis points on May 16, a steeper hike than the previous four rounds of increases, marking a departure from the gradualist approach to monetary policy.