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Disc drive unit
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Patent number 5,841,752
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Issue date Nov 24, 1998
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Sony Corporation
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Kiyoshi Ohmori
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G11 - INFORMATION STORAGE
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Disc drive unit
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Patent number 5,815,470
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Issue date Sep 29, 1998
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Sony Corporation
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Kiyoshi Ohmori
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G11 - INFORMATION STORAGE
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Optical disc apparatus
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Patent number 5,528,571
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Issue date Jun 18, 1996
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Sony Corporation
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Takeshi Funahashi
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G11 - INFORMATION STORAGE
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Optical disc apparatus
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Patent number 5,508,989
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Issue date Apr 16, 1996
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Sony Corporation
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Takeshi Funahashi
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G11 - INFORMATION STORAGE