公开(公告)号：US08339724B2

公开(公告)日：2012-12-25

申请号：US12917837

申请日：2010-11-02

申请人： Lidu Huang ,  Charles Leverne Taylor, Jr. ,  Fu-Ying Huang ,  Stephen Leonard Schmidt

发明人： Lidu Huang ,  Charles Leverne Taylor, Jr. ,  Fu-Ying Huang ,  Stephen Leonard Schmidt

IPC分类号： G11B5/03

CPC分类号： G11B5/0245 ,  H01F13/006

摘要： Approaches for inducing a magnetic bias in a magnetic recording disk. A biasing apparatus comprises a soft magnetic material member having a shape comprising two opposing recesses, denoted an upper recess and a lower recess. A first magnet is disposed within the upper recess and a second magnet disposed within the lower recess. An air gap exists between the first magnet and the second magnet. An opening in the soft magnetic material member is sized to accommodate at least a portion of the magnetic recording disk between the first magnet and the second magnet. The magnetic field produced by both the first magnetic and the second magnetic flows (a) in the same direction, and (b) perpendicular to the plane of the magnetic recording disk. Using this approach, magnetic material on the disk, such as magnetic islands of a bit pattern media, may be erased and polarized in the same direction.

摘要翻译： 在磁记录盘中引起磁偏置的方法。 偏置装置包括具有包括两个相对凹部的形状的软磁材料构件，其表示为上凹部和下凹部​​。 第一磁体设置在上凹部内，第二磁体设置在下凹部内。 在第一磁体和第二磁体之间存在气隙。 软磁性材料构件中的一个开口的尺寸设置成容纳至少一部分磁记录盘在第一磁体和第二磁体之间。 由第一磁性和第二磁性二者产生的磁场在相同的方向（a）流动，（b）垂直于磁记录盘的平面。 使用这种方法，磁盘上的磁性材料（例如位图形介质的磁岛）可以沿相同方向被擦除和极化。

公开(公告)号：US20120105997A1

公开(公告)日：2012-05-03

申请号：US12917837

申请日：2010-11-02

申请人： Lidu Huang ,  Charles Leverne Taylor, JR. ,  Fu-Ying Huang ,  Stephen Leonard Schmidt

发明人： Lidu Huang ,  Charles Leverne Taylor, JR. ,  Fu-Ying Huang ,  Stephen Leonard Schmidt

IPC分类号： G11B5/03

CPC分类号： G11B5/0245 ,  H01F13/006

摘要： Approaches for inducing a magnetic bias in a magnetic recording disk. A biasing apparatus comprises a soft magnetic material member having a shape comprising two opposing recesses, denoted an upper recess and a lower recess. A first magnet is disposed within the upper recess and a second magnet disposed within the lower recess. An air gap exists between the first magnet and the second magnet. An opening in the soft magnetic material member is sized to accommodate at least a portion of the magnetic recording disk between the first magnet and the second magnet. The magnetic field produced by both the first magnetic and the second magnetic flows (a) in the same direction, and (b) perpendicular to the plane of the magnetic recording disk. Using this approach, magnetic material on the disk, such as magnetic islands of a bit pattern media, may be erased and polarized in the same direction.

摘要翻译： 在磁记录盘中引起磁偏置的方法。 偏置装置包括具有包括两个相对凹部的形状的软磁材料构件，其表示为上凹部和下凹部​​。 第一磁体设置在上凹部内，第二磁体设置在下凹部内。 在第一磁体和第二磁体之间存在气隙。 软磁性材料构件中的一个开口的尺寸设置成容纳至少一部分磁记录盘在第一磁体和第二磁体之间。 由第一磁性和第二磁性二者产生的磁场在相同的方向（a）流动，（b）垂直于磁记录盘的平面。 使用这种方法，磁盘上的磁性材料（例如位图形介质的磁岛）可以沿相同方向被擦除和极化。