Invention Grant
- Patent Title: Magnetic recording and reproducing device with stacked body configuration
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Application No.: US15254236Application Date: 2016-09-01
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Publication No.: US09886971B2Publication Date: 2018-02-06
- Inventor: Kenichiro Yamada , Shuichi Murakami , Naoyuki Narita , Katsuhiko Koui , Akihiko Takeo , Mariko Shimizu , Hitoshi Iwasaki
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner L.L.P.
- Priority: JP2015-251896 20151224
- Main IPC: G11B5/235
- IPC: G11B5/235 ; G11B5/31 ; G11B5/17 ; G11B5/127 ; G11B5/00

Abstract:
According to one embodiment, a magnetic recording head includes a magnetic pole, a stacked body, and a first non-magnetic layer. The stacked body includes a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the magnetic pole, and a non-magnetic intermediate layer provided between the first magnetic layer and the second magnetic layer. The first non-magnetic layer is provided between the second magnetic layer and the magnetic pole, and contacts the magnetic pole and the second magnetic layer. The first magnetic layer has a first thickness and a first saturation magnetic flux density. The second magnetic layer has a second thickness and a second saturation magnetic flux density. A second product of the second thickness and the second saturation magnetic flux density is larger than a first product of the first thickness and the first saturation magnetic flux density.
Public/Granted literature
- US20170186450A1 MAGNETIC RECORDING AND REPRODUCING DEVICE Public/Granted day:2017-06-29
Information query
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