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*Hisashi Serizawa
Joining and Welding Research Institute, Osaka University
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Junji Shimazaki
Graduate School of Engineering, Osaka University (Current: MODEC, INC.)
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Fumikazu Miyasaka
Graduate School of Engineering, Osaka University
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Gaku Yoshikawa
Graduate School of Engineering, Osaka University (Current: Railway Technical Research Institute)
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Hidekazu Murakawa
Joining and Welding Research Institute, Osaka University