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Magnetic recording medium
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Patent number 7,563,522
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Issue date Jul 21, 2009
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TDK Corporation
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Naoto Yajima
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 7,208,237
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Issue date Apr 24, 2007
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TDK Corporation
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Akihiko Seki
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 7,157,163
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Issue date Jan 2, 2007
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TDK Corporation
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Naoto Yajima
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Patent number 7,011,900
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Issue date Mar 14, 2006
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TDK Corporation
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Akihiko Seki
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G11 - INFORMATION STORAGE