发明授权
- 专利标题： Soft magnetic thin film, and magnetic head and magnetic recording device using the same
- 专利标题（中）： 软磁薄膜，磁头及磁记录装置使用
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申请号： US509584申请日： 1995-07-31
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公开(公告)号： US5858548A公开(公告)日： 1999-01-12
- 发明人: Fumiyoshi Kirino , Shigeharu Otomo , Nagatugu Koiso , Noriyuki Kumasaka , Takeshi Miura
- 申请人： Fumiyoshi Kirino , Shigeharu Otomo , Nagatugu Koiso , Noriyuki Kumasaka , Takeshi Miura
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-190694 19940812; JPX6-220585 19940914
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/31 ; H01F10/14
摘要：
Corrosion resistance of a magnetic film composed mainly of Fe is maintained while keeping its magnetic properties. A magnetic head having a magnetic core is formed in part of the magnetic thin film, which contains not only an alloy of Fe-metalloid series but also (Al, Ru) or (Al, Rh) and which is thermally treated at a constant temperature to develop the soft magnetic properties. The deterioration of the saturation magnetization and the soft magnetic properties is suppressed by adding (Al, Ru) or (Al, Rh) together. The magnetic film has a high saturation magnetization and excellent soft magnetic properties and is excellent in corrosion resistance and hardness.
公开/授权文献
- US4561633A Valve for animal watering tanks 公开/授权日：1985-12-31
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