Magnetic recording medium with columar magnetic layer

Details Magnetic recording medium with columar magnetic layer Magnetic recording medium with columar magnetic layer

2007-07-10

2007-07-10

Bernatz, Kevin M. (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S836300, C428S842400

Reexamination Certificate

active

10885185

ABSTRACT:
Provided is a magnetic recording medium capable of achieving higher density recording. The magnetic recording medium comprises a magnetic layer formed on a non-magnetic base through vacuum oblique evaporation. The magnetic layer includes a plurality of columns in which 3 to 7 ferromagnetic particles with an average diameter of 5 to 10 nm are arranged in a line, and non-magnetic particles are disposed between columns so as to separate the columns from one another. A value Y/X defined as a ratio of an average value Y of a distance between the centers of adjacent columns in a film in-plane direction to an average value X of a distance between the centers of adjacent columns in a film thickness direction is preferably 0.5 or more.

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Derwent Abstract Translation of JP 2003-059040 A (Derwent Acc-No.: 2003-521845).
Derwent Abstract Translation of JP 2003-006831 A (Derwent Acc-No.: 2003-271588).
Machine Translation of JP 2003-006831 A.
Japanese Office Action 2003-271388 dated Sep. 26, 2006.
Japanese Office Action 2003-322085 dated Oct. 16, 2006.

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