发明授权
US5486969A Magnetic head core having ferrite member reinforced by non-magnetic
material
失效
具有由非磁性材料增强的铁氧体构件的磁头芯
- 专利标题: Magnetic head core having ferrite member reinforced by non-magnetic material
- 专利标题(中): 具有由非磁性材料增强的铁氧体构件的磁头芯
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申请号: US258836申请日: 1994-06-13
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公开(公告)号: US5486969A公开(公告)日: 1996-01-23
- 发明人: Fuminori Takeya , Tomio Suzuki
- 申请人: Fuminori Takeya , Tomio Suzuki
- 申请人地址: JPX
- 专利权人: NGK Insulators, Ltd.
- 当前专利权人: NGK Insulators, Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX5-185467 19930628
- 主分类号: G11B5/127
- IPC分类号: G11B5/127 ; G11B5/133 ; G11B5/17 ; G11B5/187 ; G11B5/245
摘要:
A magnetic head core for a magnetic head including a first and a second ferrite member butted and bonded together to form an annular, closed magnetic path around a coil-winding groove, and a coil attached to a coil-winding portion of the first ferrite member. The first and second ferrite members provide a sliding surface to which a magnetic recording medium is opposed, and which extends across the first and second ferrite members. A non-magnetic material is secured to at least one of an inner surface and an outer surface of the coil-winding portion. The non-magnetic material is located below the sliding surface, and is spaced apart from the magnetic recording medium with the sliding surface disposed between the non-magnetic material and the magnetic recording medium.
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