Invention Grant
- Patent Title: Patterned media and method of manufacturing the same, and magnetic recording apparatus
- Patent Title (中): 图案化介质及其制造方法以及磁记录装置
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Application No.: US12805471Application Date: 2010-08-02
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Publication No.: US08257560B2Publication Date: 2012-09-04
- Inventor: Yoshiyuki Kamata , Masatoshi Sakurai , Satoshi Shirotori , Kaori Kimura
- Applicant: Yoshiyuki Kamata , Masatoshi Sakurai , Satoshi Shirotori , Kaori Kimura
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2006-072857 20060316
- Main IPC: C23C14/00
- IPC: C23C14/00 ; C23C14/32 ; B44C1/22

Abstract:
A patterned media has a substrate, and a magnetic recording layer on the substrate including protruded magnetic patterns and a nonmagnetic material filled in between the protruded magnetic patterns. In the patterned media, a depth Db and a depth Da, which are defined that Db is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a first central part between the magnetic patterns adjacent to each other in a cross-track direction or a down-track direction, and Da is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a second central part in a portion surrounded by the magnetic patterns, have a relationship that the depth Da is greater than the depth Db.
Public/Granted literature
- US20100302679A1 Patterned media and method of manufacturing the same, and magnetic recording apparatus Public/Granted day:2010-12-02
Information query
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