Invention Grant
- Patent Title: High density magnetic recording medium and cartridge
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Application No.: US16970247Application Date: 2019-02-18
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Publication No.: US11183209B2Publication Date: 2021-11-23
- Inventor: Minoru Yamaga , Tooru Sato , Toshiaki Miura , Takanobu Iwama , Jun Takahashi
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JPJP2018-026508 20180216,WOPCT/JP2018/042721 20181119
- International Application: PCT/JP2019/005886 WO 20190218
- International Announcement: WO2019/160144 WO 20190822
- Main IPC: G11B5/592
- IPC: G11B5/592 ; G11B5/706 ; G11B5/008 ; G11B5/584 ; G11B5/733 ; G11B20/12

Abstract:
A magnetic recording medium in a shape of a tape that is long in a longitudinal direction and is short in a width direction is provided, the medium including: a base material; and a magnetic layer, in which the magnetic layer includes a data band long in the longitudinal direction in which a data signal is to be written, and a servo band long in the longitudinal direction in which a servo signal is written, and in the magnetic layer, a degree of vertical orientation is greater than or equal to 65%, a half width of a solitary waveform in a reproduction waveform of the servo signal is less than or equal to 195 nm, a thickness of the magnetic layer is less than or equal to 90 nm, and a thickness of the base material is less than or equal to 4.2 μm.
Information query
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