Tokyo, Dec. 19 (Jiji Press)--The Bank of Japan on Friday decided to raise its policy interest rate to a level unseen in 30 years, in its first rate hike since January this year. At a two-day meeting from Thursday, the BOJ's nine-member Policy Board unanimously decided to hike its target for the unsecured overnight call rate, a key interbank rate, to around 0.75 pct from around 0.5 pct. T...