Invention Grant
- Patent Title: Magnetic recording medium
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Application No.: US16490279Application Date: 2018-04-06
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Publication No.: US11621020B2Publication Date: 2023-04-04
- Inventor: Junichi Tachibana , Takashi Aizawa , Teruo Sai , Noboru Sekiguchi , Tetsuo Endo , Tomoe Ozaki , Ryoichi Hiratsuka
- Applicant: SONY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Chip Law Group
- Priority: JPJP2017-077078 20170407
- International Application: PCT/JP2018/014770 WO 20180406
- International Announcement: WO2018/186493 WO 20181011
- Main IPC: G11B5/667
- IPC: G11B5/667 ; G11B5/73 ; G11B5/65

Abstract:
A magnetic recording medium includes a flexible and elongated substrate, a soft magnetic layer having an average thickness of 10 nm or more to 50 nm or less, and a recording layer. The soft magnetic layer is disposed between the substrate and the recording layer, and a difference in Young's modulus between the magnetic recording medium and the substrate in a longitudinal direction of the substrate is 2.4 GPa or more.
Public/Granted literature
- US20200075051A1 MAGNETIC RECORDING MEDIUM Public/Granted day:2020-03-05
Information query
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