Disk apparatus and manufacturing method thereof
US5315464A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Jul 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a disk drive for storing representations of data. The disk drive includes a housing or enclosure. At least one disk is rotatably attached to the housing. Also attached to the housing is an actuator. A transducing head is attached to one end of the actuator and is positioned to pass near the disk. Attached on the other end of the actuator is a coil which makes up a portion of a voice coil motor. Another portion of the voice coil motor is a magnet positioned near the coil. The housing includes at least one recess or opening which holds the magnet on the outside of the housing yet near the coil. A material which has low magnetic permeability or no magnetic permeability may be used to seal the opening or recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.