Title:
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING/PLAYBACK DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070967
Kind Code:
A1
Abstract:
Provided are: a magnetic recording medium having a nonmagnetic support body and a magnetic layer that includes a ferromagnetic powder, the magnetic recording medium being used in a magnetic recording/playback device having a playback bit size S of 40,000 nm2 or less, the numerical value of a residual magnetic flux density Brvertical represented in units G in the direction perpendicular to the magnetic recording medium being at least X; a magnetic tape cartridge including the magnetic recording medium, which is a magnetic tape; and the magnetic recording/playback device having a playback bit size S of 40,000 nm2 or less, including the magnetic recording medium having a nonmagnetic support body and a magnetic layer that includes a ferromagnetic powder, and having a numerical value of a residual magnetic flux density Brvertical represented in units G in the vertical direction of the magnetic recording medium of at least X. X is a value calculated as X = -1.01S + 1550.
Inventors:
TADA TOSHIO (JP)
SUZUKI HIROYUKI (JP)
NAKANO MEGUMI (JP)
SUZUKI HIROYUKI (JP)
NAKANO MEGUMI (JP)
Application Number:
PCT/JP2021/034159
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
Foreign References:
| JP2002358630A | 2002-12-13 | |||
| JP2020126704A | 2020-08-20 | |||
| JP2020155190A | 2020-09-24 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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