In fact, a lot of the work needed to keep inflation on a reasonable track was done in the period from 2002 to 2005, when unusually low interest rates, which had been appropriate for the earlier part of the decade, were gradually lifted towards normal. They were raised a bit further, to be slightly higher than normal, during 2006.
Bank of Japan presents the summary of an article published in the May edition of its Quarterly Bulletin BANK OF JAPAN, COMMUNICATION, 30/5/97.