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Magnetic recording medium
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Patent number 5,496,614
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Issue date Mar 5, 1996
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Konica Corporation
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Yasushi Nakano
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 5,482,762
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Issue date Jan 9, 1996
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Konica Corporation
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Setsuko Kawahara
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 5,188,907
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Issue date Feb 23, 1993
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Konica Corporation
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Setsuko Kawahara
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 5,110,658
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Issue date May 5, 1992
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Konica Corporation
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Yasushi Nakano
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G11 - INFORMATION STORAGE