MAGNETIC RECORDING HEAD, AND MAGNETIC DISK DEVICE INCLUDING THE SAME

PROBLEM TO BE SOLVED: To provide a recording head which can achieve higher recording density by preventing deterioration or erasure of recorded information, and to provide a disk device including the recording head.SOLUTION: In an embodiment, a magnetic recording head in a disk device includes a cou...

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Bibliographic Details
Main Authors NARITA NAOYUKI, YAMADA KENICHIRO, TAKEO AKIHIKO, KOI KATSUHIKO
Format Patent
LanguageEnglish
Published 03.07.2014
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a recording head which can achieve higher recording density by preventing deterioration or erasure of recorded information, and to provide a disk device including the recording head.SOLUTION: In an embodiment, a magnetic recording head in a disk device includes a counter face 43 facing a recording medium, a main magnetic pole 60 which has a tip end exposed from the counter face and applies a recording magnetic field to a recording layer of the recording medium, and a high frequency oscillator 74 which is arranged close to a trailing side of the main magnetic pole and applies a high frequency magnetic field to the recording layer. In a region between a trailing side end of the main magnetic pole and a trailing side end of the high frequency oscillator, an angle between the recording magnetic field applied from the main magnetic pole to the recording medium and the counter face is 0 to 85 degrees.
Bibliography:Application Number: JP20120280160