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1. 发明授权

EP0104919B1 Thermomagnetic recording methods 失效
标题翻译：热电记录方法
公开(公告)号：EP0104919B1
公开(公告)日：1990-01-31
申请号：EP83305715.1
申请日：1983-09-26
申请人： SONY CORPORATION
发明人： Kaneko, Masahiro , Tamada, Hitoshi , Okamoto, Tsutomu , Yamada, Toshiro
IPC分类号： G11C19/08 , G11C13/06
CPC分类号： G11C19/0858 , G11C13/06

2. 发明公开

EP0104919A2 Thermomagnetic recording methods 失效
标题翻译： Thermomagnetische Aufnahmeverfahren。
公开(公告)号：EP0104919A2
公开(公告)日：1984-04-04
申请号：EP83305715.1
申请日：1983-09-26
申请人： SONY CORPORATION
发明人： Kaneko, Masahiro , Tamada, Hitoshi , Okamoto, Tsutomu , Yamada, Toshiro
IPC分类号： G11C19/08 , G11C13/06
CPC分类号： G11C19/0858 , G11C13/06
摘要： A thermomagnetic recording method makes use of a layer of soft magnetic material having an easy axis of magnetisation normal to the layer, the material being of a type in which magnetic bubble domains can be generated. A bias magnetic field is applied to the layer, the strength of the magnetic field being between the run-out field and the collapse field of the layer, and an optical beam is applied to the layer so as to form a bubble domain having a direction of magnetisation that is opposite to that of the bias field, the layer of soft magnetic material having selected value of ΔM s , Δσ w /σ w , f, h, He and M, to satisfy the relationship AT AT where He is the coercive force of the layer, M, is the saturation magnetisation of the layer, h is a thickness of the layer, σ w is the domain wall energy, d is the diameter of the generated domain, and each of C M and C o is a constant determined by h, d and f, where
摘要翻译：热磁记录方法利用具有易于垂直于该层的磁化轴的软磁材料层，该材料是可以产生磁性气泡畴的类型。偏置磁场被施加到该层，磁场的强度在该超出场和层的塌陷场之间，并且光束被施加到该层，以形成具有方向的磁化与偏压场的磁化相反，所述软磁材料层具有选择值 $以满足关系，其中Hc是该层的矫顽力，Ms是层的饱和磁化，h是层的厚度，σw是畴壁能量，d是所生成的域的直径，并且CM和C sigma中的每一个是由h，d和l确定的常数，其中 a$

3. 发明公开

EP0104919A3 Thermomagnetic recording methods 失效
标题翻译：热电记录方法
公开(公告)号：EP0104919A3
公开(公告)日：1986-08-13
申请号：EP83305715
申请日：1983-09-26
申请人： SONY CORPORATION
发明人： Kaneko, Masahiro , Tamada, Hitoshi , Okamoto, Tsutomu , Yamada, Toshiro
IPC分类号： G11C19/08
CPC分类号： G11C19/0858 , G11C13/06
摘要： A thermomagnetic recording method makes use of a layer of soft magnetic material having an easy axis of magnetisation normal to the layer, the material being of a type in which magnetic bubble domains can be generated. A bias magnetic field is applied to the layer, the strength of the magnetic field being between the run-out field and the collapse field of the layer, and an optical beam is applied to the layer so as to form a bubble domain having a direction of magnetisation that is opposite to that of the bias field, the layer of soft magnetic material having selected value of ΔM s , Δσ w /σ w , f, h, He and M, to satisfy the relationship AT AT where He is the coercive force of the layer, M, is the saturation magnetisation of the layer, h is a thickness of the layer, σ w is the domain wall energy, d is the diameter of the generated domain, and each of C M and C o is a constant determined by h, d and f, where

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