发明名称 |
Optical information recording medium, and substrate and manufacturing method for the optical information recording medium |
摘要 |
In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.
|
申请公布号 |
US7656784(B2) |
申请公布日期 |
2010.02.02 |
申请号 |
US20080144207 |
申请日期 |
2008.06.23 |
申请人 |
VICTOR COMPANY OF JAPAN, LIMITED |
发明人 |
KONDO TETSUYA;NAKAGAWA EIJI;NAGANO HIROFUMI |
分类号 |
G11B7/24;G11B7/007;G11B7/013;G11B7/24038;G11B7/24079;G11B7/24085;G11B7/26 |
主分类号 |
G11B7/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|