Magnetic recording medium and method of manufacturing the same

Details Magnetic recording medium and method of manufacturing the same Magnetic recording medium and method of manufacturing the same

2005-02-01

2005-02-01

McDonald, Rodney G. (Department: 1753)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C204S192200, C427S129000, C427S130000, C427S131000, C427S132000

Reexamination Certificate

active

06849164

ABSTRACT:
A magnetic recording medium and method of manufacturing the same including directly texturing a surface of a non-magnetic substrate made of a glass material to form circular concentric grooves thereon, forming a seed layer on the non-magnetic substrate, forming an under layer on the seed layer, forming a magnetic layer on the under layer, and forming a protective layer on the magnetic layer. A ratio of an in-plane remanent magnetization in a circumferential direction of the magnetic recording medium to an in-plane remanent magnetization in a radial direction of the magnetic recording medium is equal to or greater than 1.05.

REFERENCES:
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patent: 5879783 (1999-03-01), Chang et al.
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patent: 2001-009694 (2001-01-01), None
patent: 2001-101656 (2001-04-01), None
English Machine Translation of 2001-009694.

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