Invention Grant
- Patent Title: Perpendicular magnetic recording head capable of suppressing problem such as erasure of magnetic data
- Patent Title (中): 能够抑制磁数据擦除等问题的垂直磁记录头
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Application No.: US11676113Application Date: 2007-02-16
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Publication No.: US07852603B2Publication Date: 2010-12-14
- Inventor: Kiyoshi Kobayashi , Hiroshi Kameda
- Applicant: Kiyoshi Kobayashi , Hiroshi Kameda
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2006-040533 20060217
- Main IPC: G11B5/187
- IPC: G11B5/187
Abstract:
A perpendicular magnetic recording head is provided. The perpendicular magnetic recording head includes a main magnetic pole layer overlapped with a sub-yoke layer. The sub-yoke layer having a multiple-magnetic domain includes a magnetic domain having dominant track-widthwise component in contact with a front end face of the sub-yoke layer. A main magnetic pole layer 24 is overlapped with the magnetic domain 35b and is affected by the magnetic domain 35b.
Public/Granted literature
- US20070195455A1 PERPENDICULAR MAGNETIC RECORDING HEAD CAPABLE OF SUPPRESSING PROBLEM SUCH AS ERASURE OF MAGNETIC DATA Public/Granted day:2007-08-23
Information query
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