Magnetic recording disk, magnetoresistive read head, inductive write head combination
US5227212A · kind A · utility
43Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Aug 2, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12854
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved CoPt based or CoNi based alloy magnetic recording disk for horizontal recording has a magnetic recording layer which is a laminated structure of relatively thin magnetic alloy films separated by relatively thin non-magnetic spacer films. The resulting laminated disk structure has substantially decreased intrinsic media noise at high linear recording densities. A magnetic recording disk drive uses the low noise laminated disk and and a magnetoresistive read sensor to provide a disk drive with significantly reduced noise in the data readback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.