Invention Grant
- Patent Title: Thin-film magnetic head having magnetic layer with non-magnetic layer therewithin
- Patent Title (中): 具有非磁性层的磁性层的薄膜磁头
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Application No.: US11769497Application Date: 2007-06-27
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Publication No.: US07961428B2Publication Date: 2011-06-14
- Inventor: Kenkichi Anagawa , Hiraku Hirabayashi
- Applicant: Kenkichi Anagawa , Hiraku Hirabayashi
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-184563 20060704; JP2006-279946 20061013
- Main IPC: G11B5/31
- IPC: G11B5/31

Abstract:
Provided is a thin-film magnetic having improved write characteristics in the high-frequency band. The head comprises an electromagnetic coil element comprising upper and lower magnetic layers, a write gap layer and a write coil layer, and in the electromagnetic coil element, at least one non-magnetic layer is provided within the upper magnetic layer, and further, an upper surface, a lower surface, at least a portion of a front surface and at least a portion of a rear surface of the non-magnetic layer are covered with magnetic material of at least one of the upper magnetic layer and the lower magnetic layer.
Public/Granted literature
- US20080013210A1 THIN-FILM MAGNETIC HEAD HAVING MAGNETIC LAYER WITH NON-MAGNETIC LAYER THEREWITHIN Public/Granted day:2008-01-17
Information query
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