US Patent 7147790 Perpendicular magnetic discrete track recording disk
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Patent abstract
A method of forming a discrete track recording pattern on a soft magnetic underlayer of a perpendicular magnetic recording disk. In one embodiment, the soft magnetic underlayer is continuous throughout the discrete track recording pattern.
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US Patent 07147790 Perpendicular magnetic discrete track recording disk US Patent 7147790 Perpendicular magnetic discrete track recording disk
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Patent Number
0714779000
Patent Number
714779000
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Patent Jurisdiction
Patent Number
071477900
Date of Patent
December 12, 2006
0Patent Application Number
103063150
Date Filed
November 27, 2002
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
071477900
Date of Patent
December 12, 2006
0Patent Application Number
103063150
Date Filed
November 27, 2002
0Official Website
Patent Primary Examiner
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US Patent 07147790 Perpendicular magnetic discrete track recording disk
Infobox
Is a
Patent jurisdiction
Patent number
07147790
Date of patent
December 12, 2006
Patent application number
10306315
Date Filed
November 27, 2002
Patent primary examiner
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