Invention Grant
- Patent Title: Perpendicular magnetic recording medium and manufacturing method of the same
- Patent Title (中): 垂直磁记录介质及其制造方法相同
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Application No.: US12665271Application Date: 2008-09-24
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Publication No.: US08795857B2Publication Date: 2014-08-05
- Inventor: Kenji Ayama , Tokichiro Sato , Teiichiro Umezawa , Masafumi Ishiyama
- Applicant: Kenji Ayama , Tokichiro Sato , Teiichiro Umezawa , Masafumi Ishiyama
- Applicant Address: SG Singapore
- Assignee: WD Media (Singapore) Pte. Ltd.
- Current Assignee: WD Media (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Priority: JP2007-256914 20070928
- International Application: PCT/JP2008/067166 WO 20080924
- International Announcement: WO2009/041423 WO 20090402
- Main IPC: G11B5/66
- IPC: G11B5/66

Abstract:
A perpendicular magnetic recording medium of the invention is characterized by having, on a disk substrate 110, a soft magnetic layer 14, a magnetic recording layer 22, a continuous layer 24 magnetically continuous in the in-plane direction of the substrate, a blocking layer 25 for blocking shock imposed on the continuous layer, and a medium protective layer 28 containing carbon formed on the blocking layer.
Public/Granted literature
- US20100196740A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD OF THE SAME Public/Granted day:2010-08-05
Information query
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