Enlarged substrate for magnetic recording medium
US10096334B2 · kind B2 · utility
0Cited by
28References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2017 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Oct 23, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1238
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for magnetic recording media. A rotatable magnetic recording disc has an outermost annular sidewall that extends at nominally 97 millimeters, mm for a 3-½ inch form factor data storage device or at nominally 67 mm for a 2-½ inch form factor data storage device. The rotatable magnetic recording disc further has a disc shaped substrate of metal or glass, and a magnetic recording layer supported by the disc shaped substrate and configured to magnetically record data along concentric tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.