发明授权
- 专利标题： Magnetic information detecting apparatus
- 专利标题（中）： 磁信息检测装置
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申请号： US665353申请日： 1996-06-17
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公开(公告)号： US5699214A公开(公告)日： 1997-12-16
- 发明人: Hiroshi Kano , Kenji Katori , Kazuhiko Hayashi , Akihiko Okabe , Kiyoshi Kagawa , Atsuko Suzuki
- 申请人： Hiroshi Kano , Kenji Katori , Kazuhiko Hayashi , Akihiko Okabe , Kiyoshi Kagawa , Atsuko Suzuki
- 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： JPX5-226599 19930731
- 主分类号： G01D5/245
- IPC分类号： G01D5/245 ; G01B7/00 ; G01D5/14 ; G01D5/16 ; G01P3/50 ; G01R33/09 ; G11B5/008 ; G11B5/10 ; G11B5/37 ; G11B5/39 ; G11B5/48 ; H01L43/06 ; H01L43/08 ; G11B5/33 ; G01P3/42
摘要：
A magnetic information detecting apparatus is disclosed including a recording medium in which magnetic information is recorded and a magnetic field detection unit for detecting the magnetic information, the magnetic field detection unit having its magnetic field detecting section formed of a magnetoresistive element or a Hall element, the magnetic field detecting section surrounding peripheries of the recording medium. The recording medium has a substantially circular cross section. The magnetoresistive element has a structure of an artificial multilayer film formed by alternately stacking a conductor layer and a magnetic layer. The magnetic field detection unit has a soft magnetic body for conducting a magnetic field to the magnetic field detecting section.
公开/授权文献
- US4695895A Image processing system 公开/授权日：1987-09-22
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