Medium with a seed layer and a B2-structured underlayer
US6596419B1 · kind B1 · utility
14Cited by
8References
19Claims
0Family size
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Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Sep 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bi-crystal magnetic recording media, i.e., media with Cr(200) and Co(11.0) orientations, comprising non-metallic substrates, CrTi or NiPOx seed layers, B2-structured CoTi first underlayers, Cr-alloy second underlayers, and Co-alloy magnetic layers have high coercivity, high SMNR and high areal recording density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.