Magnetic read/write system and magnetic recording medium
AssigneeTDK Corporation
InventorsTakashi Horai, Hideki Sasaki, Hiroyuki Yamada
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Abstract
A novel magnetic read/write system, in which a fixed MR head serves to read magnetically recorded data from a magnetic recording medium as it operates at a relative speed of 2.0 to 5.0 m/s with respect to the magnetic recording medium comprising a non-magnetic support and a magnetic layer. A fatty acid ester represented by general formula (I): where R1 is a hydrocarbon having 4 or less carbons, and R2 is a straight chain hydrocarbon having 12 or more carbons, exists between a read element of the MR head and the magnetic layer. This magnetic read/write system exhibits improved adherence to heads, running durability, and wear resistance of the tape in low temperature conditions as well as at room temperature.
Claims3
A magnetic read/write system, in which a fixed MR head serves to read magnetically recorded data from a magnetic recording medium as it operates at a relative speed of 2.0 to 5.0 m/s with respect to the magnetic recording medium comprising a non-magnetic support and a magnetic layer, wherein a fatty acid ester represented by general formula (I):
- where R1 is a hydrocarbon having 4 or less carbons, and R2 is a straight-chain hydrocarbon having 12 or more carbons, exists between a read element of the MR head and the magnetic layer.
A magnetic recording medium comprising:
- a non-magnetic support;
- a magnetic layer containing a ferromagnetic powder and a binder resin, the magnetic layer formed over the non-magnetic support and having a dry thickness of 0.5 μm;
- and
- a non-magnetic layer containing a non-magnetic powder and a binder resin, the non-magnetic layer interposed between the non-magnetic support and the magnetic layer, the non-magnetic layer containing as a lubricant a fatty acid ester represented by general formula (I):
- where R1 is a hydrocarbon having 4 or less carbons, and R2 is a straight-chain hydrocarbon having 12 or more carbons, and a fatty acid having 12 or more carbons.
Dependencies are inferred from the claim text.