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Yuusuke KANNO
Graduate School of Science and Engineering, Ibaraki University
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Yoshinobu MOTOHASHI
Research Center for Superplasticity, Faculty of Engineering, Ibaraki University
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Takaaki SAKUMA
Research Center for Superplasticity, Faculty of Engineering, Ibaraki University
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Eitaro YUKUTAKE
Ibaraki Industrial Technology Center
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Shigeo NEGISHI
Yamanoi precision machinery Co. Ltd.
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Minoru KOUDA
Yamanoi precision machinery Co. Ltd.