Hybrid grain boundary additives
US8268462B2 · kind B2 · utility
10Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic layers are described that include the use of magnetic grains and non-magnetic grain boundaries with hybrid additives. Hybrid additives include the use of at least two different additives in the composition of the grain boundaries of a magnetic layer in magnetic recording media. The use of hybrid additives in the grain boundaries results in improved recording media. Methods for forming magnetic layers and magnetic recording media with the hybrid additive grain boundaries are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.