In early Tokyo trading today, the dollar continued to fall, opening at 142.70 yen, down from yesterday's close of 145.20.
In early Tokyo trading yesterday, the dollar touched the 120-yen mark before recovering to end the day at around 123.20 yen.
Investors showed few signs that they expected big help from the bank, bidding down stocks in thin Tokyo trading.
In Tokyo trading yesterday, the yen closed at a record high of 119.65 to the dollar.
Earlier, in Tokyo trading, the dollar had traded at slightly more than 137 yen.
In late Tokyo trading, it was quoted at 97.88 yen.
Today, the shares edged up nearly 2 percent in Tokyo trading.
They said the intervention began in Tokyo trading and carried over into London dealings.
The dollar fell about one-third of a yen in Tokyo trading today.
In Tokyo trading today, the yen rose to another record high.
