发明名称 Magneto-optical storage apparatus having the relation between numerical aperture and recording medium
摘要 An object of the present invention is to provide a film-surface light-incident type magneto-optical recording medium which is used by means of an objective lens having a large NA value and is excellent in productivity and yield, and a magneto-optical recording apparatus. According to the present invention, there is provided a magneto-optical recording medium for conducting recording or reading-out from the film surface side of the recording medium by traveling of a flying head incorporated with an objective lens having a numerical aperture (NA) of not more than 0.95 and not less than 0.8, wherein at least a reflective film, a recording layer, a transparent dielectric layer, a transparent resin layer and a lubricant layer are laminated on a substrate in that order.
申请公布号 US6760279(B1) 申请公布日期 2004.07.06
申请号 US20020049518 申请日期 2002.02.13
申请人 HITACHI MAXELL, LTD. 发明人 MARO TSUYOSHI
分类号 G11B7/00;G11B11/105;(IPC1-7):G11B11/00 主分类号 G11B7/00
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