Method for producing a stamper

Details Method for producing a stamper Method for producing a stamper

2005-10-26

2009-12-08

Kornakov, Michael (Department: 1792)

Coating processes

Magnetic base or coating

C427S130000, C427S132000, C427S443200, C101S004000, C264S320000

Reexamination Certificate

active

07629021

ABSTRACT:
The object of the present is to provide high-quality magnetic recording media capable of easy tracking, and allowing high-density recording, high-speed recording, and higher capacity without increasing the write-current at magnetic heads. The nanohole structure comprises a metal or metal-compound base material and plural arrays of nanoholes, wherein the plural arrays of nanoholes are respectively arranged into regular alignments, the regular alignments are different between adjacent arrays, and the regular alignments are alternately disposed within the metal or metal-compound base material. The magnetic recording medium according to the present invention comprises a substrate, a porous layer into which plural nanoholes are formed, and a magnetic material within the plural nanoholes, wherein the plural nanoholes are formed in a direction approximately vertical to the plane of the substrate, the porous layer is a nanohole structure according to the present invention.

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English machine translation of JP 2002-175621; JPO; 2008; 10 pages.
Stephen Y. Chou, “Patterned Magnetic Nanostructures and Quantized Magnetic Disks”, IEEE vol. 85 No. 4, pp. 652-671 (1997).

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