发明授权
- 专利标题: Thin film magnetic head
- 专利标题(中): 薄膜磁头
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申请号: US11374167申请日: 2006-03-14
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公开(公告)号: US07573675B2公开(公告)日: 2009-08-11
- 发明人: Naoki Ohta , Kazuki Sato , Noriaki Kasahara , Takeo Kagami
- 申请人: Naoki Ohta , Kazuki Sato , Noriaki Kasahara , Takeo Kagami
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JPP2005-080256 20050318; JPP2006-000194 20060104
- 主分类号: G11B5/31
- IPC分类号: G11B5/31
摘要:
A thin film magnetic head has an air bearing surface and comprises magnetic shield layers, an MR element, bias-applying layers, and a hard magnetic layer. Each of the magnetic shield layers has an end face forming the air bearing surface, and an end face located opposite to the end face. The MR element is located between the magnetic shield layers and on the end face side. The bias-applying layers are located between the magnetic shield layers and are arranged to apply a bias magnetic field to the MR element. The hard magnetic layer is located between the magnetic shield layers and on the end face side. A height of the hard magnetic layer is larger than ⅓ and smaller than ½ of a height of each magnetic shield layer.
公开/授权文献
- US20060209470A1 Thin film magnetic head 公开/授权日:2006-09-21
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