Invention Grant
- Patent Title: Magnetic recording head, magnetic head assembly, and magnetic recording apparatus
- Patent Title (中): 磁记录头,磁头组件和磁记录装置
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Application No.: US12737691Application Date: 2011-02-07
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Publication No.: US08238058B2Publication Date: 2012-08-07
- Inventor: Mariko Shimizu , Hitoshi Iwasaki , Kenichiro Yamada , Katsuhiko Koui , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Soichi Oikawa
- Applicant: Mariko Shimizu , Hitoshi Iwasaki , Kenichiro Yamada , Katsuhiko Koui , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Soichi Oikawa
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Nixon & Vanderhye, P.C.
- Priority: JP2008-203645 20080806
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
According to one embodiment, a magnetic recording head includes a main magnetic pole, a shield, and a stacked structure body. The shield is provided to oppose the main magnetic pole. The stacked structure body is provided between the main magnetic pole and the shield. The stacked structure body includes a first magnetic layer, a second magnetic layer, and an intermediate layer. The first magnetic layer has coercivity lower than a magnetic field applied from the main magnetic pole. A size of a film surface of the second magnetic layer is larger than a size of a film surface of the first magnetic layer. The intermediate layer is provided between the first magnetic layer and the second magnetic layer and is made of a nonmagnetic material. A current is configured to pass between the first magnetic layer and the second magnetic layer.
Public/Granted literature
- US20110205655A1 MAGNETIC RECORDING HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING APPARATUS Public/Granted day:2011-08-25
Information query
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