tokyo june 17 reuters  the bank of japan maintained its massive stimulus on friday and its guidance to keep borrowing costs at present or lower levels signaling its resolve to focus on supporting the economys recovery from the covid19 pandemic the central bank also said it would offer to buy unlimited amounts of 10year japanese government bonds jgb at 025 every business day repeating the guidance on market operations it made in april as widely expected the central bank kept unchanged its shortterm interest rate target at 01 and a pledge to guide the 10year government bond yield around 0 the decision was made by a 81 vote reporting by leika kihara tetsushi kajimoto daniel leussink and kantaro komiya editing by changran kim