Invention Grant
- Patent Title: Magnetic recording medium, recording reproducing apparatus, and stamper
- Patent Title (中): 磁记录介质,记录重放装置和压模
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Application No.: US12412600Application Date: 2009-03-27
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Publication No.: US07773323B2Publication Date: 2010-08-10
- Inventor: Akimasa Kaizu , Yoshikazu Soeno , Makoto Moriya
- Applicant: Akimasa Kaizu , Yoshikazu Soeno , Makoto Moriya
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein P.L.C.
- Priority: JP2005-039143 20050216
- Main IPC: G11B5/09
- IPC: G11B5/09

Abstract:
On a magnetic recording medium, M sets of burst patterns are formed along a direction of rotation of a substrate in each burst pattern region. Each burst pattern is formed so as to include two types of burst signal units that have an equal length along a radial direction of the substrate. In a predetermined range, (2M) centers in the radial direction of the burst patterns are present at intervals of (1/N) times the track pitch in the radial direction. The predetermined range has a length along the radial direction of (2M/N) times the track pitch. M or N is a natural number of 2 or higher. The two types of burst signal units are formed of non-recording regions and end regions of the burst signal units overlap in the radial direction in at least one part region of the substrate.
Public/Granted literature
- US20090185308A1 MAGNETIC RECORDING MEDIUM, RECORDING REPRODUCING APPARATUS, AND STAMPER Public/Granted day:2009-07-23
Information query
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