发明授权
- 专利标题: Multi-element magnetic head
- 专利标题(中): 多元素磁头
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申请号: US641224申请日: 1975-12-16
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公开(公告)号: US4065797A公开(公告)日: 1977-12-27
- 发明人: Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
- 申请人: Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
- 申请人地址: JA Kadoma
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JA Kadoma
- 优先权: JA49-147384 19741220; JA49-2743 19741224; JA49-2742 19741224
- 主分类号: G11B5/33
- IPC分类号: G11B5/33 ; G11B5/39 ; G11B23/00 ; G11B5/12
摘要:
A multi-element made magnetic head having a plurality of magnetoresistive elements of a ferromagnetic material such as permalloy formed on a base of a ferromagnetic material such as ferrite is disclosed. The ferromagnetic material base is formed with a groove, which is common for all elements made extends parallel to the recording medium. It is filled with a non-magentic material such as glass, and the individual magnetoresistive elements are disposed so as to bridge the groove and are not adapted to be in direct frictional contact with the recording medium for reducing their wear. The magnetoresistive elements are also made to extend perpendicular to the recording medium so as to increase the head density or reduce the head pitch.
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