发明名称 |
MAGNETO-OPTICAL RECORDING METHOD USING A MAGNETO-OPTICAL RECORDING MEDIUM HAVING TWO OR MORE MAGNETIC LAYERS TO ALLOW RECORDING AND REPRODUCTION TO BE EFFECTED SIMULTANEOUSLY AND MAGNETO-OPTICAL RECORDING MEDIUM USED IN THE METHOD |
摘要 |
A magneto-optical recording method employs a magneto-optical recording medium having a first magnetic layer which exhibits low coercive force at room temperature and high Curie temperature and a second magnetic layer which is exchange-coupled to the first magnetic layer and which exhibits a higher coercive force and a lower Curie temperature as compared with those of the first magnetic layer. A magnetic field modulated in accordance with information to be recorded is applied to the magneto-optical recording medium while irradiating it with a light beam of a constant intensity so as to record the information. The recorded information is simultaneously confirmed by using a reflected light of this light beam.
|
申请公布号 |
CA2073924(C) |
申请公布日期 |
1997.03.04 |
申请号 |
CA19922073924 |
申请日期 |
1992.07.15 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KOBAYASHI, TADASHI;HASEGAWA, KOYO;HONGU, KAZUOKI;YAMAMOTO, MASAKUNI |
分类号 |
G11B11/105;(IPC1-7):G11B13/04 |
主分类号 |
G11B11/105 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|