Bank of Japan Gov. Toshihiko Fukui underscored on Wednesday his determination to fight deflation, stating the central bank will take "unlimited risks" until prices rise.

"To lift (year-on-year changes in the consumer price index) into positive territory, we will take unlimited risks," Fukui said during a question-and-answer session at a lecture hosted by Kyodo News.

Fukui said the central bank will continue to implement easing measures even after inflation hopes start to rise.