发明授权
- 专利标题: Magnetic transducer head having an alloy thin film of high saturation magnetic flux density slantly provided with respect to an operating magnetic gap formed therein
- 专利标题(中): 具有相对于其中形成的工作磁隙倾斜地提供高饱和磁通密度的合金薄膜的磁性换能器头
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申请号: US686540申请日: 1984-12-26
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公开(公告)号: US4755899A公开(公告)日: 1988-07-05
- 发明人: Tomio Kobayashi , Heikichi Sato , Makoto Kubota , Shoichi Kano , Tatsuo Kumura , Kazushi Yamauchi , Yoshimi Takahashi , Junichi Saito
- 申请人: Tomio Kobayashi , Heikichi Sato , Makoto Kubota , Shoichi Kano , Tatsuo Kumura , Kazushi Yamauchi , Yoshimi Takahashi , Junichi Saito
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX58-250988 19831230
- 主分类号: G11B5/147
- IPC分类号: G11B5/147 ; G11B5/127 ; G11B5/187 ; G11B5/23 ; G11B5/245 ; G11B5/31
摘要:
A magnetic transducer head comprising a first magnetic core element and a second magnetic core element, each of the first and second core elements comprising a magnetic ferrite block and a magnetic metal thin film integrated with the magnetic ferrite block. These core elements having a first planar surface and a second planar surface. The magnetic metal thin film being provided on the second planar surface and having an edge thereof facing to the first planar surface, and the second planar surface being slantly provided with respect to said first planar surface. These core elements being bonded together to form an operating magnetic gap between the edge of the magnetic metal thin film on the first core element and the edge of the magnetic metal thin film on the second core element. The magnetic metal thin film on the first core element or the magnetic thin film on the second core element is formed in one common plane.The magnetic metal thin film may be formed of the ferromagnetic metals including Fe--Al--Si alloys, amorphous metal alloys or permalloy. And the magnetic metal thin film having substantially uniform columnar grain structure or uniform magnetic anisotropy, over entire area of the film.
公开/授权文献
- US4046896A 1-Methyl-2-(pyridyl-oxymethyl)-5-nitro-imidazoles 公开/授权日:1977-09-06
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