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Tadashi Arai
Central Research Laboratory, Hitachi, Ltd.
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Toshio Sakamizu
Central Research Laboratory, Hitachi, Ltd.
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Kohji Katoh
Yamazaki Works, Hitachi Chemical Co., Ltd.
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Michiaki Hashimoto
Yamazaki Works, Hitachi Chemical Co., Ltd.
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Hiroshi Shiraishi
Central Research Laboratory, Hitachi, Ltd.