The dollar appears likely to remain locked in a relatively narrow 105-110 yen range through much of this month.

The dollar gained ground against the yen in mid-May amid expectations of widening interest rate differentials between Japan and the United States in the wake of the May 16 interest rate hikes by the U.S. Federal Reserve.

In a move aimed at slowing economic growth and keeping inflation in check, the Fed's policy-setting Federal Open Market Committee raised its target for the federal funds rate by 50 basis points to 6.5 percent.