High density optical disk and a method of high density recording
US6829212B1 · kind B1 · utility
8Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1999 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Mar 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high density disk and a method of manufacturing the high density disk. The high density is accomplished by narrowing the pitch and increasing the groove depth so as not to sacrifice any desirable features of the high density optical disk medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.