专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0125536A3 Thermo-magnetic recording materials supporting small stable domains 失效
标题翻译：热磁记录材料支持小稳定域
公开(公告)号：EP0125536A3
公开(公告)日：1986-06-25
申请号：EP84104593
申请日：1984-04-24
申请人： GENERAL ELECTRIC COMPANY
发明人： Kryder, Mark Howard
IPC分类号： H01F10/12 , G03G05/16 , G11B05/64
CPC分类号： G11B5/64 , G03G5/16 , H01F10/135
摘要： Amorphous alloys of two materials having antiferromagnetically-coupled magnetization sublattices, and capable of deposition as a thin film supporting small stable domains for thermo-magnetic recording. The thin-film material is an alloy of at least one rare-earth element and a transition-metal element. A stable domain of a few microns diameter, allowing highest density of information recording, is achieved by providing the lowest possible wall energy to the domain, with a resulting low anisotropy.

2. 发明公开

EP0125535A3 Rapid thermo-magnetic recording disk printer and master disk for same 失效
标题翻译：快速热磁记录盘和主磁盘
公开(公告)号：EP0125535A3
公开(公告)日：1986-07-09
申请号：EP84104592
申请日：1984-04-24
申请人： GENERAL ELECTRIC COMPANY
发明人： Kryder, Mark Howard
IPC分类号： G11B13/04 , G11B11/10 , G11B05/86
CPC分类号： G11B5/865 , G11B11/10504 , G11B11/10526 , G11B2005/0021
摘要： A master disk for simultaneous recording of all information upon a thermo-magnetic recording disk, has a layer of a heating-energy-reflecting material supported by a substrate of a material substantially transparent to the form of heating energy used. The reflecting material layer is apertured at locations at which the disk-to-be-recorded is to have a bit of digital information of opposite binary value from the binary value of locations at which the reflecting layer remains intact. The master disk is placed adjacent to a recording disk previously having all domains therein magnetized in a first direction, and a beam of heating energy, such as light and the like, is directed through the master disk, in the presence of a magnetic field of direction opposite to the direction of the previous magnetization of the domains. The magnetization of domains situated under apertures in the reflecting layer is reversed, responsive to the heating energy beam and the opposite-direction external field, to rapidly write the binary information from the master disk onto the recording disk.

3. 发明公开

EP0125535A2 Rapid thermo-magnetic recording disk printer and master disk for same 失效
标题翻译： Schneller Thermomagnetische-Aufnahmeplatten-Drucker und Urplattefürdenselben。
公开(公告)号：EP0125535A2
公开(公告)日：1984-11-21
申请号：EP84104592.5
申请日：1984-04-24
申请人： GENERAL ELECTRIC COMPANY
发明人： Kryder, Mark Howard
IPC分类号： G11B13/04 , G11B11/10 , G11B5/86
CPC分类号： G11B5/865 , G11B11/10504 , G11B11/10526 , G11B2005/0021
摘要： A master disk for simultaneous recording of all information upon a thermo-magnetic recording disk, has a layer of a heating-energy-reflecting material supported by a substrate of a material substantially transparent to the form of heating energy used. The reflecting material layer is apertured at locations at which the disk-to-be-recorded is to have a bit of digital information of opposite binary value from the binary value of locations at which the reflecting layer remains intact. The master disk is placed adjacent to a recording disk previously having all domains therein magnetized in a first direction, and a beam of heating energy, such as light and the like, is directed through the master disk, in the presence of a magnetic field of direction opposite to the direction of the previous magnetization of the domains. The magnetization of domains situated under apertures in the reflecting layer is reversed, responsive to the heating energy beam and the opposite-direction external field, to rapidly write the binary information from the master disk onto the recording disk.
摘要翻译：用于在热磁记录盘上同时记录所有信息的母盘具有由基本上透明的材料的基底支撑的加热能量反射材料层，以使用所加热的能量的形式。反射材料层在被记录的磁盘的位置处开孔，以便具有与反射层保持完整的位置的二进制值相反的二进制值的数位信息。主盘被放置在与先前具有在第一方向上被磁化的所有区域的记录盘相邻的位置，并且诸如光等的加热能量束被引导通过主盘，在磁盘的磁场方向与畴的先前磁化方向相反。响应于加热能量束和相反方向的外部场，位于反射层中的孔下面的畴的磁化反转，从而将二进制信息从主盘快速写入到记录盘上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式