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*T. Ikemoto
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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Y. Kageyama
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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Y. Nakaoka
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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F. Onuma
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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K. Ichimura
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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K. Sakashita
Tokyo Research Laboratory, Mitsubishi Rayon Co. Ltd.
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K. Mori
Department of Agricultural Chemistry, Tokyo University