Magnetic recording medium, magnetic recording/reproducing device and method for manufacturing magnetic recording medium

A magnetic recording medium and magnetic recording technology, applied in the direction of magnetic recording, configuration/installation of recording head, data recording, etc., can solve the problem of magnetic recording medium rotation, etc., and achieve the effects of preventing contact, high production efficiency, and excellent stability
CN102016987AInactive Publication Date: 2011-04-13SHOWA DENKO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHOWA DENKO KK
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided is a magnetic recording medium which can be manufactured at high manufacturing efficiency, has protruding sections which are composed of a magnetic layer and can be separated by a recessed separating region, and provides excellent stable floating characteristics of a magnetic head. In a magnetic recording medium (40), at least on one surface of a disc-like substrate, an annular magnetic recording region (A), and a landing region (B) arranged along an edge section of the magnetic recording region (A) are arranged. The magnetic recording region (A) is provided with a data region (41) having a data pattern (45) composed of protruding sections (43a) composed of a magnetic layer, and a recessed separating regions (44a) formed at the periphery of the protruding sections (43a); and a servo information region (42) provided with a servo pattern (46), which is composed of protruding sections (43b, 43c) and an isolating region (44b) and has a shape different from that of the data pattern (45) in plane view. At least on a part of the landing region (B), an uneven pattern (47) having a protruding section (43d) which has the same shape as that of the protruding section (43a) of the data pattern (45) is arranged.
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Description

technical field

[0001] The present invention relates to a magnetic recording medium and a magnetic recording / reproducing device used in a hard disk device or the like.

[0002] This application claims priority based on Japanese Patent Application Laid-Open No. 2008-119769 for which it applied in Japan on May 1, 2008, and uses the content here. Background technique

[0003] Recently, the application range of magnetic recording devices such as magnetic disk devices, floppy disk devices, and magnetic tape devices has been significantly expanded, and their importance has increased. At the same time, the recording (storage) density of magnetic recording media used in these devices has been significantly increased. In particular, since the introduction of MR (magnetoresistive) head and PRML technology, the increase in areal recording density has been more drastic. In recent years, GMR heads, TMR heads, etc. have also been introduced, and the increase in areal recording density has...

Claims

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