System and method for detecting reader-writer offset in a heat-assisted magnetic recording head

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United States of America Patent

PATENT NO 9564157
SERIAL NO

14832186

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Abstract

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An apparatus comprises a heat-assisted magnetic recording head configured to write to and read from a magnetic recording medium. The head comprises a reader and a writer including a near-field transducer (NFT). The reader comprises a center which is laterally offset relative to a center of the writer to define a reader-writer offset (RWO) therebetween. A magnetic recording medium comprises a plurality of tracks. The plurality of tracks comprises at least one track used as a region to test for a shift in the RWO. A processor is coupled to the recording head and configured to detect the RWO shift.

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Patent Owner(s)

  • SEAGATE TECHNOLOGY LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gaertner, Mark Allen Vadnais Heights, US 71 2858
Jury, Jason C Minneapolis, US 9 84
Rausch, Tim Farmington, US 84 1280
Trantham, Jon Chanhassen, US 17 305

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