INTRODUCTION  
2. DATA SELECTION  
2.1. The Swift/BAT 22-month Source Catalog  
2.2. The AKARI Point Source Catalogs  
2.3. Source Identification  
3. RESULTS  
3.1. Redshift, Flux Distribution and Completeness  
3.2. Hard X-ray to IR Luminosity Correlation  
4. DISCUSSION  
4.1. Mid-infrared to Hard X-ray Correlation for Seyfert AGN  
4.2. Mid-infrared to Hard X-ray Correlation for Compton-thick AGN  
4.3. Mid-infrared to Hard X-ray Correlation for Radio-loud AGN  
4.4. Photometric Diagnostics for Source Classification  
5. CONCLUSIONS