Title:
MAGNETO-OPTICAL RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP2624114
Kind Code:
B2
Abstract:
PURPOSE: To provide the large-capacity magneto-optical recording medium.
CONSTITUTION: This magneto-optical recording medium consists of ≥2 layers of recording films and has a process of transferring the magnetization state of the recording film 2 nearer the light irradiation side next to the recording film 1 to the recording film nearest the light irradiation side at the time of forming recording marks. The boundary magnetic wall energy, effective perpendicularly anisotropic magnetic fields, film thickness, etc., of both layers are controlled at this time, by which the magnetization from the recording film 2 to the recording film 1 is effectively transferred. As a result, the recording film 1 having a large Curie temp., large coercive force, etc., are made usable. The magneto-optical recording medium of high reproduced output is obtd. The recording film having recording characteristics of the recording film 2 is produced. The recording characteristics are changed by changing the recording film 2 even if the recording film 1 is not changed.
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Inventors:
Ogawa Masatsugu
Application Number:
JP7995493A
Publication Date:
June 25, 1997
Filing Date:
April 07, 1993
Export Citation:
Assignee:
NEC
International Classes:
G11B11/10; G11B11/105; (IPC1-7): G11B11/10
Domestic Patent References:
| JP528563A |
Attorney, Agent or Firm:
Yoshiyuki Iwasa