Invention Grant
- Patent Title: Method for manufacturing magnetic recording medium and magnetic recording medium
- Patent Title (中): 磁记录介质和磁记录介质的制造方法
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Application No.: US13236726Application Date: 2011-09-20
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Publication No.: US08475949B2Publication Date: 2013-07-02
- Inventor: Kaori Kimura , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai
- Applicant: Kaori Kimura , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai
- Applicant Address: JP Tokyo
- Assignee: Kabusihki Kaisha Toshiba
- Current Assignee: Kabusihki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Pillsbury Winthrop Shaw Pittman, LLP
- Priority: JP2007-173047 20070629
- Main IPC: G11B5/66
- IPC: G11B5/66
Abstract:
A magnetic recording medium is presented that includes protruded magnetic patterns formed on a substrate, and a nonmagnetic material filled in recesses between the magnetic patterns in which an oxygen concentration thereof is higher at a surface side than at a substrate side. The nonmagnetic material is at least one selected from the group consisting of Si, SiC, SiC—C, SiOC, SiON, Si3N4, Al, AlxOy, Ti and TiOx.
Public/Granted literature
- US20120009439A1 METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM Public/Granted day:2012-01-12
Information query
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