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Patent Searching and Data


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)
Application Number:
JP2020/033522
Publication Date:
April 01, 2021
Filing Date:
September 04, 2020
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
G11B5/70; G11B5/706; G11B5/714; G11B5/716; G11B5/842
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (1-1-11 Minami Ikebukuro, Toshima-k, Tokyo 22, JP)
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