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Lighting Company, Matsushita Electric Industrial Co., Ltd., 1-1 Saiwai-cho, Takatsuki, Osaka 569-1193, Japan | 論文著者
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Manabe Yoshio
Lighting Company, Matsushita Electric Industrial Co., Ltd., 1-1 Saiwai-cho, Takatsuki, Osaka 569-1193, Japan
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Ueda Takashi
Lighting Company, Matsushita Electric Industrial Co., Ltd., 1-1 Saiwai-cho, Takatsuki, Osaka 569-1193, Japan