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Tetsuya YAMAMOTO
Sumitomo Metal Industries, Ltd.
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Michiharu HARIKI
Central Research Laboratories, Sumitomo Metal Industries, Ltd.
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Michiya YAMASHITA
Wakayama Steel Works, Sumitomo Metal Industries, Ltd.
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Tateo KAWASAWA
Wakayama Steel Works, Sumitomo Metal Industries, Ltd.
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Yoshiki NAKAHARA
Wakayama Steel Works, Sumitomo Metal Industries, Ltd.
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Yoshimasa SATO
Niihama Works, Sumitomo Heavy Industries, Ltd.
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Toshio TSUKUDA
Niihama Works, Sumitomo Heavy Industries, Ltd.