1. Joining and Welding Research Institute, Osaka University (Present Address: Osaka Research Institute of Industrial Science and Technology, Izumi Center)
2. Joining and Welding Research Institute, Osaka University (Present Address: Graduate School of Engineering, Tohoku University)
3. Magnesium Research Center, Kumamoto University (Present Address: Joining and Welding Research Institute, Osaka University)
4. Joining and Welding Research Institute, Osaka University