Invention Grant
- Patent Title: Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus
- Patent Title (中): 垂直磁记录介质和磁记录/再现设备
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Application No.: US12015100Application Date: 2008-01-16
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Publication No.: US08367230B2Publication Date: 2013-02-05
- Inventor: Takeshi Iwasaki
- Applicant: Takeshi Iwasaki
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Pillsbury Winthrop Shaw Pittman, LLP
- Priority: JP2007-016637 20070126
- Main IPC: G11B5/66
- IPC: G11B5/66
Abstract:
According to one embodiment, a soft magnetic layer, a first nonmagnetic underlayer having a fine crystal structure and made of Pd or a Pd alloy, a second nonmagnetic underlayer made of Ru or an Ru alloy, and a perpendicular magnetic recording layer are stacked on a nonmagnetic substrate.
Public/Granted literature
- US20080182131A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCTION APPARATUS Public/Granted day:2008-07-31
Information query
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