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Objective lens driving apparatus
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Patent number 5,224,083
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Issue date Jun 29, 1993
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Matsushita Electric Industrial Co., Ltd.
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Kanji Wakabayashi
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G11 - INFORMATION STORAGE
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Data demodulation apparatus
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Patent number 5,056,116
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Issue date Oct 8, 1991
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Matsushita Electric Industrial Co., Ltd.
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Toshiyuki Shimada
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G11 - INFORMATION STORAGE
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Objective lens actuator
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Patent number 5,044,729
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Issue date Sep 3, 1991
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Matsushita Electric Industrial Co., Ltd.
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Hironori Tomita
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G11 - INFORMATION STORAGE