Demagnetization of magnetic media for data storage device using gradually reduced magnetic field
US7079345B1 · kind B1 · utility
10Cited by
5References
70Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F13/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Demagnetizing magnetic media for recording data in a data storage device includes placing the magnetic media in a magnetic field at a first strength, and gradually reducing the magnetic field to a second strength to essentially eliminate net magnetization in the magnetic media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.