1. Central Research
Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185-8601, Japan
2. Hitachi
High-Tech
Solutions Corporation, Mito, Ibaraki 319-0316, Japan
3. Hitachi, Ltd., Defense
Systems Company, Chiyoda, Tokyo 101-8608, Japan
4. National Research
Institute of Police Science, Kashiwa, Chiba 277-0882, Japan