Magnetic disk apparatus
US4651242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1984 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Dec 20, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk apparatus using at least one floating magnetic head which is floated above the surface of a rotating magnetic disk by utilizing dynamic pressure of air caused by the rotation of the magnetic disk, the magnetic disk apparatus comprising, a magnetic head assembly including a magnetic head and a supporting device for supporting the magnetic head to float above the surface of the rotating magnetic disk, the supporting device being provided with a space changing device for changing a space between the magnetic disk surface and the magnetic head, a driver coupled with the space changing device for driving the space changing device, and a controller coupled with the driver for controlling the driving of the space changing device by the driver to change the space between the magnetic head and the magnetic disk surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.