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AssigneeFuji Electric Device Technology Co., Ltd.
InventorTakashi SHIMADA
Estimating the term…
A substrate for a magnetic recording medium is disclosed which enables formation of a magnetic recording medium for which both the electromagnetic transducing characteristics and the recording head flying characteristics can be maintained at high levels. In a substrate for a magnetic recording medium comprising a disc-shaped nonmagnetic body, and having on the surface thereof a plurality of texture marks the circumferential direction component and the radial direction component of which change continuously, there are at least four types of modes of this continuous change, and cross angles are formed by each of the texture marks themselves obtained by the modes of change, so that overall at least four types of cross angles are formed on the substrate.
A substrate for a magnetic recording medium, comprising a disc-shaped nonmagnetic body, and having on the surface thereof a plurality of texture marks having a circumferential direction component and a radial direction component, wherein the circumferential direction component and the radial direction component change continuously and there exist at least four different cross angles of the texture marks on the substrate.
A method of manufacture of a substrate for a magnetic recording medium, comprising:
A method of manufacture of a substrate for a magnetic recording medium, comprising:
Dependencies are inferred from the claim text.