发明名称 MAGNETIC REPRODUCING HEAD AND MAGNETIC RECORDING MEDIUM REPRODUCING DEVICE USING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a magnetic reproducing head capable of securely attaining high output, low noise and high resolution and a magnetic recording medium reproducing device using the magnetic reproducing head. <P>SOLUTION: A magnetic reproducing head 60, which detects magnetic recording information recorded on a magnetic recording medium 150 moving in a predetermined moving direction 160, comprises a flux guide 10 composed of a high-permeability magnetic film in which the moving direction and a film thickness t direction agree with each other and a side surface is exposed at a facing surface of the magnetic recording medium, and a protective film 20 composed of a non-magnetic material disposed so that the guide flux is sandwiched from both sides in the moving direction. The width W at the facing surface of the magnetic recording medium of the flux guide is 0.5 to 1.5 &mu;m. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012146356(A) 申请公布日期 2012.08.02
申请号 JP20110003364 申请日期 2011.01.11
申请人 NIPPON HOSO KYOKAI <NHK> 发明人 HAYASHI NAOTO;KISHIDA MASAHIKO;MIYAMOTO YASUYOSHI
分类号 G11B11/10;G11B5/02;G11B11/105 主分类号 G11B11/10
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