Control method of control magnetic disk unit and magnetic disk unit using such method
US6693761B2 · kind B2 · utility
4Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic disk unit, in the control of a load/unload function of a magnetic head relative to a magnetic disk, the magnetic disk and the magnetic head are prevented from contacting each other and damage thereto is avoided by utilizing a shallow dual-step subambient pressure slider and carrying out loading/unloading at a rotational speed lower than a rated rotational speed of the normally operated magnetic disk at which writing and reading (R/W) of data to and from the magnetic disk by the magnetic head is normally carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.