Invention Grant
- Patent Title: Magnetic head with multiple reproducing elements each having magnetically coupled free layers, magnetic recording reproducing apparatus and magnetic head manufacturing method
- Patent Title (中): 具有各自具有磁耦合自由层的多个再现元件的磁头，磁记录再现装置和磁头制造方法
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Application No.: US14152974Application Date: 2014-01-10
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Publication No.: US09171558B2Publication Date: 2015-10-27
- Inventor: Akihiko Takeo , Kazuto Kashiwagi , Kenichiro Yamada , Katsuhiko Koui , Tomomi Funayama
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Patterson & Sheridan, LLP
- Priority: JP2013-130909 20130621
- Main IPC: G11B5/39
- IPC: G11B5/39 ; G11B5/31 ; G11B5/29 ; G11B5/48 ; G11B5/49
Abstract:
A magnetic head includes a plurality of reproducing elements so that the magnetic head can acquire reproduction signals from a plurality of tracks at the same time. The magnetic head includes a first reproducing element, a first magnetic film formed on a first side wall of the first reproducing element with a first side wall insulating film interposed therebetween, a second magnetic film formed on a second side wall of the first reproducing element with a second side wall insulating film interposed therebetween, a second reproducing element electrically isolated from the first reproducing element and formed on the first magnetic film, a third magnetic film formed on the first magnetic film, and a fourth magnetic film formed on the first reproducing element and electrically isolated from the second reproducing element.
Public/Granted literature
- US20140376130A1 MAGNETIC HEAD, MAGNETIC RECORDING REPRODUCING APPARATUS AND MAGNETIC HEAD MANUFACTURING METHOD Public/Granted day:2014-12-25
Information query
IPC分类:
