Invention Application
- Patent Title: MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING/REPRODUCTION DEVICE, AND METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM
- Patent Title (中): 磁记录介质,磁记录/再现装置和制造磁记录介质的方法
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Application No.: US12346210Application Date: 2008-12-30
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Publication No.: US20090244785A1Publication Date: 2009-10-01
- Inventor: Hideyuki Kikuchi , Kenji Sato , Takuya Uzumaki
- Applicant: Hideyuki Kikuchi , Kenji Sato , Takuya Uzumaki
- Applicant Address: JP Kawasaki-shi
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki-shi
- Priority: JP2008-83488 20080327
- Main IPC: G11B5/56
- IPC: G11B5/56 ; G11B5/82 ; B44C1/22

Abstract:
A magnetic recording medium suppresses effectively side erasure even when recording dot intervals are reduced. Magnetic dots and a soft magnetic layer are provided on a soft magnetic underlayer with a nonmagnetic layer intervening, so that magnetic dots are separated by the soft magnetic layer, and consequently leakage flux during recording to magnetic dots is absorbed by the soft magnetic layer, side erasure can be suppressed, and moreover the soft magnetic underlayer and soft magnetic layer are separated, so that an influence on recording/reproduction characteristics can be prevented.
Information query
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