Invention Grant
- Patent Title: Magnetoresistive head and magnetic recoding/reproducing apparatus using the same
- Patent Title (中): 磁阻磁头及使用其的磁记录/再现装置
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Application No.: US10041611Application Date: 2002-01-10
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Publication No.: US06697235B2Publication Date: 2004-02-24
- Inventor: Takayoshi Ohtsu , Koichi Nishioka
- Applicant: Takayoshi Ohtsu , Koichi Nishioka
- Priority: JP2001-129661 20010426
- Main IPC: G11B539
- IPC: G11B539

Abstract:
A magnetoresistive head includes a substrate, first and second magnetic shields, a magnetoresistive effect film formed within a gap layer between the first and second magnetic shields, a permanent magnet layer provided on both sides of the magnetoresistive effect film in order to apply a magnetic field to the film, and an electrode film provided on the permanent magnet layer so as to permit a signal detected current to flow, wherein a magnetic film is stacked on the permanent magnet layer with a nonmagnetic separation layer interposed between the permanent magnet layer and the magnetic film so that the magnetic film has formed therein a magnetic path, thus, it is possible to provide a GMR reproduce head of which the reproduction sensitivity can be maintained high even if the track width is narrow.
Public/Granted literature
- US20020160228A1 Magnetoresistive head and magnetic recording/reproducing apparatus using the same Public/Granted day:2002-10-31
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