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Yutaka MATSUDA
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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Seunghwan PARK
Hitachi Research laboratory,Hitachi Ltd.
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Satoshi HIRANO
Hitachi Research laboratory,Hitachi Ltd.
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Kazuya OKADA
Touhoku Electric Power Co., Inc.