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*Koichi SHIDA
&quat;Shinko Welding Service Co., Ltd.&quat;
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Hiroyuki TAKEDA
&quat;Shinko Welding Service Co., Ltd.&quat;
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Toshiaki OKABE
&quat;Shinko Welding Service Co., Ltd.&quat;
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Shinji TAKAHASHI
&quat;Shinko Welding Service Co., Ltd.&quat;
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Hiromi OYAMADA
&quat;Kobe Steel, Ltd.&quat;
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Hiroya YASUI
KYUSHU UNIVERSITY
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Kenji KANEKO
KYUSHU UNIVERSITY