In August, the Justice Ministry ordered a review of records that found about 77,000 people who would be at least 120, and 884 people who would be 150 or older. The head count followed a flurry of reports about how elderly people are falling through the cracks in Japan as its population ages rapidly and family ties weaken.
http://news.yahoo.com/s/ap/20100910/ap_on_re_as/as_japan_missing_centenarians