Invention Grant
- Patent Title: Perpendicular magnetic recording head having a stepped portion and method of manufacturing the same
- Patent Title (中): 具有阶梯部的垂直磁记录头及其制造方法
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Application No.: US11518723Application Date: 2006-09-11
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Publication No.: US07643246B2Publication Date: 2010-01-05
- Inventor: Hisayuki Yazawa , Toshinori Watanabe
- Applicant: Hisayuki Yazawa , Toshinori Watanabe
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2005-275558 20050922
- Main IPC: G11B5/187
- IPC: G11B5/187 ; G11B5/23
Abstract:
A magnetic recording head and a method of manufacturing the magnetic recording head are provided. The perpendicular magnetic recording head includes a main magnetic pole layer and a return path layer that face each other with a gap therebetween in a lamination direction. A non-magnetic insulating layer is interposed between the main magnetic pole layer and the return path layer. At least one stepped portion is formed on a facing surface of at least one of the main magnetic pole layer and the return path layer.
Public/Granted literature
- US20070064343A1 Perpendicular magnetic recording head and method of manufacturing the same Public/Granted day:2007-03-22
Information query
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