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Kazuharu SUGAWARA
Kitami Institute of Technology
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Suwaru HOSHI
Kitami Institute of Technology
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Kunihiko AKATSUKA
Kitami Institute of Technology
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Shunitz TANAKA
Division of Material Science, Graduate School of Environmental Earth Science, Hokkaido University
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Hiroshi NAKAMURA
Division of Material Science, Graduate School of Environmental Earth Science, Hokkaido University