A magnetic recording medium is provided in which a magnetic recording layer 5 is provided in a predetermined concavo-convex pattern on a substrate 1A, a concave portion in a concavo-convex pattern is filled with a non-magnetic material, and a non-magnetic layer 16 formed of the non-magnetic material positioned at the bottom surface of the concave portion in the non-magnetic materials is formed on a convex portion of the concavo-convex pattern while surface of the convex portion and the concave portion is substantially flattened, and a thickness of the non-magnetic layer 16 is 1 nm or less.

 
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> Method or producing an organic pigment dispersion liquid and organic pigment fine particles obtained by the method

> Noise suppresion suppression for hall sensor arrangements

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