发明授权
- 专利标题： Optical read-out magnetic head
- 专利标题（中）： 光读出磁头
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申请号： US832884申请日： 1986-02-26
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公开(公告)号： US4707755A公开(公告)日： 1987-11-17
- 发明人: Norio Ohta , Shigenori Okamine , Yutaka Sugita , Yosuke Seo , Takashi Tamura
- 申请人： Norio Ohta , Shigenori Okamine , Yutaka Sugita , Yosuke Seo , Takashi Tamura
- 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： JPX60-54441 19850320; JPX60-54440 19850320
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B11/105 ; G11B11/10
摘要：
An optical read-out magnetic head of a single pole type having a main pole, an auxiliary pole, and a writing coil. The main pole consists of a high permeability film and a magneto-optical film, the magneto-optical film has an easy magnetization axis parallel to or in the extension direction of that film surface high permeability film. Writing is carried out magnetically by employing the coil, and reproduction is effected optically by employing the magneto-optic film.
公开/授权文献
- US6097390A Progress-indicating mouse pointer 公开/授权日：2000-08-01
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