Optical information recording medium, optical information recordng apparatus, and optical information recording method
US8102742B2 · kind B2 · utility
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5References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 20, 2009 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Feb 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/00457
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium includes a recording layer in which a track is formed, the track having recording marks linearly arranged thereon. Each recording mark has a dimension corresponding to a reference mark length, which serves as a reference, in a track direction along which the track extends, the dimension being smaller than dimensions of the recording mark in two directions perpendicular to the track direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.