Magnetic disk apparatus
US7460327B2 · kind B2 · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Nov 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic disk apparatus includes a magnetic head element having a read element and a write element, a heater provided in the magnetic head element for controlling a protruding amount thereof, a write resistance detector that detects a resistance value of the write element, and an MPU (write element temperature calculation unit) that calculates a temperature of the write element as a temperature of the magnetic head element based on a resistance value of the write element detected by the write resistance detector and a temperature coefficient of the write element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.