In addition to earnings reports this week, investors were also still weighing the impact from last week's joint US-Japan currency intervention, analysts said.
Japan's benchmark Nikkei 225 slipped 0.3% to 63,585.58, as the US dollar inched up to 157.51 Japanese yen from 157.18 yen. The euro cost $1.1511, little changed from $1.1514. The dollar was trading at 160-yen levels before regulators stepped in to boost the yen's value after it fell to nearly 40-year lows.
