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US 10,311,908 B2Granted
Magnetic recording medium
AssigneeSony Corporation
InventorTakashi Aizawa
Life of this patent
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Abstract
A magnetic recording medium includes a flexible substrate, an amorphous seed layer, an under layer containing Ru, and a recording layer having a granular structure. The seed layer is provided between the substrate and the under layer. The under layer has a thickness in a range of 5 to 50 nm.
Claims12
A magnetic tape comprising:
- a flexible substrate;
- an amorphous seed layer comprising an alloy comprising Ti and Cr;
- an under layer containing Ru;
- and
- a recording layer having a granular structure,
- wherein the seed layer is provided between the substrate and the under layer, the under layer has a thickness in a range of 5 to 50 nm, and the substrate has a Young's modulus in a range of 6,250 to 16,000 N/mm2;
- and
- wherein the magnetic tape has a crack-resistant load in a range of 200 to 500 g/12.75 mm.
5 more elements
Dependencies are inferred from the claim text.