Active control of a read/write head
US9881644B2 · kind B2 · utility
1Cited by
22References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2017 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention generally relates to a hard disk drive with a disk, a read/write head, a z-axis actuator, and a controller. A surface of the disk and/or the head can be bare and thus devoid of any overcoat or lubricant layer, or alternatively the disk surface can have one or more layers with a combined thickness of less than 4 nanometers and the head can have a layer with a thickness of less than 2 nanometers. The hard disk drive can be enclosed, and its enclosed space can be a low pressure environment such as a near-zero or a zero pressure environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.