Disk drive with disks having different disk stiffness, thickness and material combinations
US7064922B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2004 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/038
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aspect of the invention can be regarded as a disk drive that includes a disk drive base and a spindle motor hub rotatably coupled to the disk drive base. The disk drive further includes a first disk disposed about the spindle motor hub and having a first disk stiffness. The disk drive further includes a second disk disposed about the spindle motor hub and having a second disk stiffness different than the first disk stiffness. According to another aspect of the present invention, the second disk has a second disk thickness different than a first disk thickness. According to another aspect of the present invention, the second disk is formed of a second material having a second material stiffness different than a first material stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.