Magnetic disk device
US7256959B2 · kind B2 · utility
6Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Apr 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk device having a cover of a simple structure having high rigidity and not easily deformable by pressure from the outside. An envelop surface configuration (46) of at least a portion of a cover (40) positioned opposite a magnetic disk (2, 43) is made generally conical, such that the distance from the magnetic disk decreases along a direction from the vicinity of a rotating shaft of a motor, as the center, toward the outer periphery of the magnetic disk, thereby reducing the amount of deformation of the cover, particularly in the vicinity of the rotating shaft of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.