发明名称 |
MAGNETOOPTICAL DATA DISK |
摘要 |
Magnetooptical data disc having at least one optically transparent, dimensionally stable backing and at least one magnetooptical recording layer composed of a chromium-containing lanthanide transition-metal alloy in which the chromium concentration varies in the horizontal direction, and a process for producing the magnetooptical data disc. |
申请公布号 |
EP0446784(A3) |
申请公布日期 |
1992.02.26 |
申请号 |
EP19910103486 |
申请日期 |
1991.03.07 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HARTH, KLAUS, DR.;HIBST, HARTMUT, DR. |
分类号 |
G11B11/10;G11B11/105;(IPC1-7):G11B11/10 |
主分类号 |
G11B11/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|