发明授权
- 专利标题: Magnetic head
- 专利标题(中): 磁头
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申请号: US444455申请日: 1982-11-24
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公开(公告)号: US4590530A公开(公告)日: 1986-05-20
- 发明人: Hiroshi Sakakima , Mitsuo Satomi , Yukihiro Yanagiuchi , Harufumi Senno
- 申请人: Hiroshi Sakakima , Mitsuo Satomi , Yukihiro Yanagiuchi , Harufumi Senno
- 申请人地址: JPX 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: JPX Kadoma
- 优先权: JPX56-188672 19811124
- 主分类号: G11B5/133
- IPC分类号: G11B5/133 ; G11B5/127 ; G11B5/147 ; G11B5/245 ; G11B5/255 ; G11B5/31 ; G11B5/12
摘要:
A magnetic head a core having a front core and a back core. The front core has a wear-resistant non-magnetic base and a soft magnetic thin film disposed on the base. The thin film is divided into halves by a magnetic gap therein. The back core has a U-shaped block of soft magnetic material and a wear-resistant non-magnetic member connected between the legs of the soft magnetic block. The front and back cores are coupled with each other with the thin film sandwiched therebetween, the magnetic gap in the thin film facing the wear-resistant non-magnetic member, and the soft magnetic thin film and the soft magnetic block being in face-to-face contact with each other out of the neighborhood of the magnetic gap to form a closed magnetic path across the magnetic gap.
公开/授权文献
- US6097759A Image signal coding system 公开/授权日:2000-08-01