Magnetic recording media and method for manufacturing the same

Details Magnetic recording media and method for manufacturing the same Magnetic recording media and method for manufacturing the same

2005-02-08

2005-02-08

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S693100, C428S690000, C428S690000, C428S900000

Reexamination Certificate

active

06852431

ABSTRACT:
A magnetic recording medium includes data signal storage regions each having first magnetic substance cells, and tracking servo signal storage regions each having second magnetic substance cells. The first magnetic substance cells are separated from one another by nonmagnetic substance and the second magnetic substance cells are separated from one another by nonmagnetic substance, and the first magnetic substance cells and the second magnetic substance cells have different magnetic properties.

REFERENCES:
patent: 6420058 (2002-07-01), Haratani et al.
patent: 20020031008 (2002-03-01), Den et al.
patent: 20020086185 (2002-07-01), Yasui et al.
A. Abe et al., “Forming Mosaic Structures in Anodized Porous Alumina”, Jap. Soc. Appld. Phys. and Related Soc., Extended Abstracts (48th Spring Meeting 2001), No. 3, p. 1322.

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