发明授权
- 专利标题： Magnetic head with soft magnetic shield and magnetic storage
- 专利标题（中）： 磁头带软磁屏蔽和磁存储
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申请号： US11292575申请日： 2005-12-02
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公开(公告)号： US07450349B2公开(公告)日： 2008-11-11
- 发明人: Yasutaka Nishida , Ikuya Tagawa , Masafumi Mochizuki , Roger Wood
- 申请人： Yasutaka Nishida , Ikuya Tagawa , Masafumi Mochizuki , Roger Wood
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Townsend and Townsend and Crew LLP
- 代理商 Rambod Nader
- 优先权： JP2004-351654 20041203
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
Embodiments of the invention avoid erasure of recorded data by concentrating stray fields on a magnetic head element. According to one embodiment, in a magnetic storage apparatus using a perpendicular recording medium with a soft magnetic under layer, a soft magnetic shield is provided so as to surround the upper parts and sides of magnetic head elements. A distance between the soft magnetic shield and the medium is shorter than that between the soft magnetic shield and the magnetic head element.
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