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Akira Okada
Osaka City University
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Kuniko Yamashita
Osaka City University
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Hiroe Ishihara
Osaka City University
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Kiyomi Sakamoto
Matsushita Electric Industrial Co., Ltd.
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Shigeo Asahara
Matsushita Electric Industrial Co., Ltd.
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Masaharu Matsuoka
Matsushita Electric Industrial Co., Ltd.
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Shoichi Aoyama
Matsushita Electric Industrial Co., Ltd.