1. Sun Medical Technology Research Corp. Nagano Japan
2. Hokkaido Cardiovascular Hospital Hokkaido Japan
3. Evaheart Inc. Houston Texas
4. Department of Cardiovascular and Thoracic Surgery Graduate school of Medicine, Ehime University Ehime Japan
5. Department of Artificial Organs National Cerebral and Cardiovascular Center Osaka Japan
6. Advanced Medical Engineering Research Center, Asahikawa Medical University Hokkaido Japan
7. Department of Cardiovascular Surgery Graduate School of Medicine, Osaka University Osaka Japan