As for the negative results after the devastating earthquake that hit Japan on March 11, Japan's large manufacturers expect that the business confidence in Japan to slid during the next months.

The quarterly outlook index of sentiment among big manufacturers is seen falling to minus 2 in June from 6 in March, which would be the lowest reading in a year.

At meantime, manufacturing sector in Japan, the most sector affected by the March quake, which dropped to the slowest pace in nine years in March, confirming that the economy to shrink during the first quarter this year.