Japanese companies remain generally unfazed by continued rises in the yen against the dollar, according to analysts.

Firms have exhibited higher tolerance levels, backed by both their efforts to limit the adverse effects of the yen's rise and also by the strength of the euro and other currencies, they said.

They cited three factors for the calmness that prevails: many export-oriented companies have almost completed dollar-selling forward contracts for the yen, the yen remained weaker than many companies had anticipated during the first half of the current business year, and the strength of the euro and other currencies helps diffuse risks for the yen.