Title:
MAGNETIC RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/059922
Kind Code:
A1
Abstract:
This tape-shaped magnetic recording medium comprises a recording layer including ε-iron oxide particles. The total area Stotal of the SFD curve of the recording layer in the vertical direction, and the area Slow of the SFD curve in a region where coercivity Hc satisfies the expression -500 [Oe] ≤ Hc ≤ 500 [Oe], have an area ratio Rlow (= (Slow / Stotal) × 100) of 5.5% or less.
Inventors:
ICHISE NATSUKI (JP)
YAMAGA MINORU (JP)
MAESHIMA KATSUNORI (JP)
TERAKAWA MASARU (JP)
TAKAHASHI TAKESHI (JP)
SATO TOMOE (JP)
KATAGUCHI TAKASHI (JP)
YAMAGA MINORU (JP)
MAESHIMA KATSUNORI (JP)
TERAKAWA MASARU (JP)
TAKAHASHI TAKESHI (JP)
SATO TOMOE (JP)
KATAGUCHI TAKASHI (JP)
Application Number:
PCT/JP2020/033522
Publication Date:
April 01, 2021
Filing Date:
September 04, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G11B5/70; G11B5/706; G11B5/714; G11B5/716; G11B5/842
Domestic Patent References:
| WO2019159466A1 | 2019-08-22 |
Foreign References:
| JP2019023950A | 2019-02-14 | |||
| JP2015201246A | 2015-11-12 | |||
| JP2012142529A | 2012-07-26 | |||
| JP2019067466A | 2019-04-25 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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