Title:
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING PLAYBACK DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070966
Kind Code:
A1
Abstract:
Provided are: a magnetic recording medium which comprises a non-magnetic support body and a magnetic layer containing a ferromagnetic powder, wherein the ferromagnetic powder is an ε-iron oxide powder, the H0.2 of the magnetic recording medium is 5000 Oe or more and 40,000 Oe or less at the measurement temperature of 25°C, and a slope of H0.2, obtained from H0.2 at a measurement temperature of 10°C, H0.2 at a measurement temperature of 25°C, and H0.2 at a measurement temperature of 40°C, is -100 Oe/°C or higher and -5 Oe/°C or lower; a magnetic tape cartridge containing the magnetic recording medium, which is a magnetic tape; and a magnetic recording playback device including the magnetic recording medium.
Inventors:
OZAWA EIKI (JP)
FUJIMOTO TAKASHI (JP)
FUJIMOTO TAKASHI (JP)
Application Number:
PCT/JP2021/034158
Publication Date:
April 07, 2022
Filing Date:
September 16, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G11B5/70; G11B5/706; G11B5/735; G11B5/738; G11B5/78; G11B23/107
Domestic Patent References:
| WO2018203468A1 | 2018-11-08 | |||
| WO2018199105A1 | 2018-11-01 |
Foreign References:
| JP2017191633A | 2017-10-19 | |||
| JP2011070744A | 2011-04-07 | |||
| JP2020009522A | 2020-01-16 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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