Magnetic recording medium with backside to decrease recording surface embossment
AssigneeImation Corp.
InventorsJames A. Greczyna, Brian D. Brong, Stephen R. Ebner
Life of this patent
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Abstract
A magnetic recording medium including a substrate, a magnetic side, and a backside. The substrate defines a first surface and a second surface opposite the first surface. The magnetic side is formed over the first surface of the substrate and defines a recording surface. The backside is coated on the second surface of the substrate and is configured to decrease embossment of the recording surface. The backside defines a backside surface opposite the substrate. The backside surface having a skew less than about 0.5 and a kurtosis less than about 4.0.
Claims20
A magnetic recording medium comprising:
- a substrate defining a first surface and a second surface opposite the first surface;
- a magnetic side formed over the first surface of the substrate and defining a recording surface;
- and
- a backside coated on the second surface of the substrate and configured to decrease embossment of the recording surface, the backside defining a backside surface opposite the substrate, the backside surface having a skew less than about 0.5 and a kurtosis less than about 4.0.
A magnetic recording medium comprising:
- a substrate defining a first surface and a second surface opposite the first surface;
- a magnetic side coated on the first surface of the substrate and defining a recording surface;
- and
- a backside coated on the second surface of the substrate and configured to decrease the embossment of the recording surface, wherein the backside defines a backside surface opposite the substrate, the backside surface having a peak height mean less than about 200 and a peak-to-valley roughness less than about 325 nm.
A magnetic recording medium comprising:
- a substrate defining a first surface and a second surface opposite the first surface;
- a magnetic side coated on the first surface of the substrate and defining a recording surface;
- and
- a backside coated on the second surface of the substrate and configured to decrease the embossment of the recording surface, wherein the backside defines a backside surface opposite the substrate, the backside surface having a skew less than about 0.5, a kurtosis less than about 4.0, a peak height mean of less than about 200, and a peak-to-valley roughness less than about 325 nm.
Dependencies are inferred from the claim text.