发明名称 MAGNETIC RECORDING AND REPRODUCING HEAD
摘要 PURPOSE:To reduce the peak shift or the like of a reproduced signal and to perform recording and reproducing at a good error rate by sticking a high-permeability magnetic thin film to the trailing edge side of a high-permeability magnetic member so that the end face facing a magnetic recording medium of this thin film is nearer to the magnetic recording medium than the end face facing the magnetic recording medium of the high-permeability magnetic member. CONSTITUTION:A pair of high-permeability magnetic thin films 12 are stuck to high- permeability magnetic members 13 forming a gap 11 of a ring-shaped magnetic head of a magnetic recording and reproducing head so that end faces facing the surface of the medium are placed a certain length apart from end faces 15 facing the surface of the medium of high-permeability magnetic members 13. With respect to positions of high-permeability magnetic thin films 12 and high-permeability magnetic members 13 relative to the medium moving direction, high-permeability magnetic thin films 12 are in the trailing edge side. The magnetic flux passing high-permeability magnetic members 13 is concentrated in high-permeability magnetic thin films to generate a sharp magnetic field of very high intensity. Thus, the peak shift of the reproduced signal is reduced extremely.
申请公布号 JPS62298906(A) 申请公布日期 1987.12.26
申请号 JP19860141337 申请日期 1986.06.19
申请人 NEC CORP 发明人 MURAYAMA HIROKI
分类号 G11B5/127;G11B5/21 主分类号 G11B5/127
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