发明名称 Magneto-optical recording medium
摘要 A magneto-optical recording medium including a recording layer for recording information and a substrate for supporting the recording layer is disclosed. The recording layer includes: a recording magnetic film for recording the information, the recording magnetic film being formed of a perpendicular magnetic anisotropy film; a readout magnetic film for optically reading out the information, the readout magnetic film being capable of being magnetically coupled with the recording magnetic film by an exchange-coupling force; and a controlling magnetic film, provided between the recording magnetic film and the readout magnetic film, for controlling the exchange-coupling force. The controlling magnetic film has in-plane magnetic anisotropy at room temperature, thereby suppressing the exchange-coupling force between the recording magnetic film and the readout magnetic film, and when the temperature of the controlling magnetic film reaches a predetermined temperature by a readout light irradiation, the controlling magnetic film stops the suppression of the exchange-coupling force, whereby the information recorded in the recording magnetic film is magnetically transferred to the readout magnetic film.
申请公布号 US6399227(B1) 申请公布日期 2002.06.04
申请号 US19930160976 申请日期 1993.11.30
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 KUDOH YOSHIHIKO;HINO YASUMORI;FUKAMACHI YUUICHI;BIRUKAWA MASAHIRO
分类号 G11B11/10;G11B11/105;(IPC1-7):B32B15/18;B32B15/00;G11B11/00 主分类号 G11B11/10
代理机构 代理人
主权项
地址