After touching 84.82 (2009 low) support, USDJPY rebounded from 84.72, suggesting that a cycle bottom is being formed on daily chart. Further rally would more likely be seen in next several days and target would be at 87.50 area. Support is at 84.72, only break below this level could trigger another fall to 82.00 zone.
For long term analysis, USDJPY has formed a cycle top at 94.98 level on weekly chart. Drop to 80.00 is still possible after consolidation.