| 发明名称 |
Optical disc |
| 摘要 |
An optical disk includes a land and a groove. On this optical disk, data is recorded on both the land and the groove. A distance between the center of the land and the center of the groove adjacent to the land is 0.28 mum or more. The optical disk has a data efficiency of 80% or more. Thus, an optical disk having a storage capacity of 25 GB or more can be provided. |
| 申请公布号 |
AU9236001(A) |
申请公布日期 |
2002.04.22 |
| 申请号 |
AU20010092360 |
申请日期 |
2001.10.04 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKASHI ISHIDA;HIROMICHI ISHIBASHI;MAMORU SHOJI;ATSUSHI NAKAMURA;JUNICHI MINAMINO;SHIGERU FURUMIYA |
| 分类号 |
G11B7/007;G11B7/013;G11B7/24;G11B7/24079;G11B7/24082;G11B7/24085;G11B20/12 |
主分类号 |
G11B7/007 |
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