发明名称 |
Magnetic recording medium using a perpendicular magnetic film having a tBr not exceeding one-fifth of a tBr of an in-plane magnetic film |
摘要 |
A magnetic recording medium is provided. The magnetic recording medium comprises an in-plane magnetic film used for recording, and a perpendicular magnetic film formed on the in-plane magnetic film. The in-plane magnetic film has a magnetization easy axis in an in-plane direction. The perpendicular magnetic film has a magnetization easy axis oriented in a direction perpendicular to the magnetization easy axis of the in-plane magnetic film. A tBr (a product of a thickness and a residual magnetization) of the perpendicular magnetic film is set so as not to exceed one-fifth of a tBr of the in-plane magnetic film at the maximum.
|
申请公布号 |
US2002150793(A1) |
申请公布日期 |
2002.10.17 |
申请号 |
US20010976767 |
申请日期 |
2001.10.12 |
申请人 |
FUJITSU LIMITED |
发明人 |
MAEDA MAKI;TAKESHITA HIROTO;UZUMAKI TAKUYA;TANAKA ATSUSHI |
分类号 |
G11B5/64;G11B5/66;G11B5/673;G11B5/738;G11B5/855;(IPC1-7):G11B5/66 |
主分类号 |
G11B5/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|