Tape-shaped magnetic recording medium and cartridge
AssigneeSony Group Corporation
InventorMinoru Yamaga
Life of this patent
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Abstract
A magnetic recording medium according to the present technology is a tape-shaped magnetic recording medium including: a base material; and a magnetic layer, the tape-shaped magnetic recording medium being long in a longitudinal direction and short in a width direction, in which the magnetic layer includes a data band long in the longitudinal direction and a servo band long in the longitudinal direction, a data signal being written to the data band, a servo signal being written to the servo band, the degree of perpendicular orientation of the magnetic layer being 65% or more, a full width at half maximum of an isolated waveform in a reproduced waveform of the data signal is 185 nm or less, a thickness of the magnetic layer is 90 nm or less, and a thickness of the base material is 4.2 μm or less.
Claims27
A magnetic recording medium, comprising:
- a base material;
- and
- a magnetic layer, the magnetic recording medium being long in a longitudinal direction and short in a width direction, wherein
- the magnetic layer includes a data band long in the longitudinal direction and a servo band long in the longitudinal direction, a data signal being written to the data band, a servo signal being written to the servo band, a degree of perpendicular orientation of the magnetic layer being 65% or more,
- a full width at half maximum of an isolated waveform in a reproduced waveform of the data signal is 185 nm or less,
- a thickness of the magnetic layer is 90 nm or less,
- a thickness of the base material is 4.2 μm or less, and
- wherein the magnetic recording medium is tape-shaped.
A cartridge, including:
- a tape-shaped magnetic recording medium including
- a base material, and
- a magnetic layer, the tape-shaped magnetic recording medium being long in a longitudinal direction and short in a width direction, wherein
- the magnetic layer includes a data band long in the longitudinal direction and a servo band long in the longitudinal direction, a data signal being written to the data band, a servo signal being written to the servo band, a degree of perpendicular orientation of the magnetic layer being 65% or more,
- a full width at half maximum of an isolated waveform in a reproduced waveform of the data signal is 185 nm or less,
- a thickness of the magnetic layer is 90 nm or less, and
- a thickness of the base material is 4.2 μm or less.
Dependencies are inferred from the claim text.