发明名称 |
Apparatus for providing uniaxial anisotropy in a magnetic recording disk |
摘要 |
An apparatus for providing radial uniaxial anisotropy in the soft magnetic layer of a magnetic recording disk is disclosed. While the soft magnetic layer is being deposited on the recording disk, the magnetic field. The alternating perpendicular magnetic field causes eddy currents to flow in the disk, in a circumferential direction. The eddy currents, in turn cause a magnetic field in a radial direction, thereby resulting in the desired radial uniaxial anisotropy.
|
申请公布号 |
US5226966(A) |
申请公布日期 |
1993.07.13 |
申请号 |
US19920797504 |
申请日期 |
1992.03.02 |
申请人 |
DIGITAL EQUIPMENT CORPORATION |
发明人 |
MALLARY, MICHAEL L.;ISHIBASHI, KAZUO;SATO, HIROSHI |
分类号 |
G11B5/66;G11B5/84;G11B5/845 |
主分类号 |
G11B5/66 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|