Magnetic recording medium and method of fabricating the same
US6146740A · kind A · utility
10Cited by
17References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A read-only disk and a write-only disk recorded at high density having a magneto-optical film differing in coercive force depending on the information to be recorded disposed on a substrate. In the read-only and write-once disks, signals can be read employing only part of the irradiation beam, and thus super-resolution reading is realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.