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10 条记录 (耗时 0.018 秒)

    Return pole field reduction for perpendicular write head
    1.
    发明授权
    Return pole field reduction for perpendicular write head 有权
    垂直写头返回极场减少

    公开(公告)号：US07289295B2

    公开(公告)日：2007-10-30

    申请号：US10844170

    申请日：2004-05-12

    申请人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang ,  Kochan Ju

    发明人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang ,  Kochan Ju

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3146 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

    摘要： In a single vertical pole magnetic writer, flux passing through the return pole can sometimes be strong enough to erase previously recorded data. This problem has been overcome by the addition of a second return pole that is magnetically connected to the conventional return pole for the purpose of collecting leaked flux, thereby preventing it from reaching the underlayer.

    摘要翻译： 在单个垂直磁极写入器中，通过返回极的磁通有时足够强大以擦除先前记录的数据。 这个问题已经通过添加磁性连接到常规返回极的第二返回极来克服，以便收集泄漏的通量，从而防止其到达底层。

    Perpendicular magnetic writer with magnetic potential control shield
    2.
    发明授权
    Perpendicular magnetic writer with magnetic potential control shield 失效
    具有磁势控制屏蔽的垂直磁性写入器

    公开(公告)号：US07106554B2

    公开(公告)日：2006-09-12

    申请号：US10411345

    申请日：2003-04-10

    申请人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang ,  Kochan Ju

    发明人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang ,  Kochan Ju

    IPC分类号： G11B5/11 ,  G11B5/187

    CPC分类号： G11B5/3146 ,  G11B5/1272 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/3116 ,  G11B2005/0013 ,  G11B2005/0029

    摘要： Conventional perpendicular writers that utilize an extended return pole are subject to large undershoot fields. This problem has been reduced by replacing the prior art extended return pole by one whose magnetic potential has been increased relative to both the main and return poles. In a first embodiment, a second non-magnetic gap is inserted between the extended return pole and the return pole. In a second embodiment, the extended return pole is made very thin, thereby increasing its reluctance, while a third embodiment combines both reluctance-increasing features in a single design.

    摘要翻译： 使用延伸返回极的常规垂直写入器受到大的下冲场。 通过将现有技术的延伸返回极替换为相对于主极和返回极两者的磁势已经增加的极点，已经减少了这个问题。 在第一实施例中，第二非磁隙插入延伸的返回极和返回极之间。 在第二实施例中，扩展的返回极被制成非常薄，从而增加其磁阻，而第三实施例在单一设计中组合磁阻增加特征。

    Perpendicular write head with tapered main pole
    5.
    发明授权
    Perpendicular write head with tapered main pole 有权
    垂直写头带锥形主极

    公开(公告)号：US07777987B2

    公开(公告)日：2010-08-17

    申请号：US12384691

    申请日：2009-04-08

    申请人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    发明人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    IPC分类号： G11B5/11

    CPC分类号： G11B5/1475 ,  G11B5/1278 ,  G11B5/315 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： Prior art designs of single pole writers have been limited by premature saturation at the tip. This limits the head field that can be achieved without simultaneously widening the write profile. This problem has bee solved by means of a vertical main pole whose thickness has its conventional value a short distance from the tip but that tapers down to a significantly reduced value as it approaches the tip. A process for manufacturing this tapered tip design is also presented.

    摘要翻译： 单极写入器的现有技术设计已经受到尖端处的过早饱和的限制。 这限制了可以实现的头部场，而不会同时加宽写入轮廓。 这个问题已经通过一个垂直的主极来解决，该垂直主极的厚度具有与尖端相距很短的常规值，但随着接近尖端而逐渐减小到显着降低的值。 还提出了一种用于制造该锥形尖端设计的工艺。

    Process to manufacture a magnetic write head
    8.
    发明授权
    Process to manufacture a magnetic write head 有权
    制造磁头的过程

    公开(公告)号：US07934310B2

    公开(公告)日：2011-05-03

    申请号：US12384761

    申请日：2009-04-08

    申请人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    发明人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： G11B5/1475 ,  G11B5/1278 ,  G11B5/315 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： Prior art designs of single pole writers have been limited by premature saturation at the tip. This limits the head field that can be achieved without simultaneously widening the write profile. This problem has bee solved by means of a vertical main pole whose thickness has its conventional value a short distance from the tip but that tapers down to a significantly reduced value as it approaches the tip. A process for manufacturing this tapered tip design is also presented.

    摘要翻译： 单极写入器的现有技术设计已经受到尖端处的过早饱和的限制。 这限制了可以实现的头部场，而不会同时加宽写入轮廓。 这个问题已经通过一个垂直的主极来解决，该垂直主极的厚度具有与尖端相距很短的常规值，但随着接近尖端而逐渐减小到显着降低的值。 还提出了一种用于制造该锥形尖端设计的工艺。

    Perpendicular write head with tapered main pole
    9.
    发明授权
    Perpendicular write head with tapered main pole 有权
    垂直写头带锥形主极

    公开(公告)号：US07777988B2

    公开(公告)日：2010-08-17

    申请号：US12384742

    申请日：2009-04-08

    申请人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    发明人： Lijie Guan ,  Hung Liang Hu ,  Yaw Shing Tang

    IPC分类号： G11B5/11

    CPC分类号： G11B5/1475 ,  G11B5/1278 ,  G11B5/315 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： Prior art designs of single pole writers have been limited by premature saturation at the tip. This limits the head field that can be achieved without simultaneously widening the write profile. This problem has been solved by means of a vertical main pole whose thickness has its conventional value a short distance from the tip but that tapers down to a significantly reduced value as it approaches the tip. A process for manufacturing this tapered tip design is also presented.

    摘要翻译： 单极写入器的现有技术设计已经受到尖端处的过早饱和的限制。 这限制了可以实现的头部场，而不会同时加宽写入轮廓。 这个问题已经通过一个垂直的主极来解决，该垂直主极的厚度具有与尖端相距很短的常规值，但随着接近尖端而逐渐减小到显着降低的值。 还提出了一种用于制造该锥形尖端设计的工艺。

    Fully shielded perpendicular recoding writer
    10.
    发明授权
    Fully shielded perpendicular recoding writer 有权
    完全屏蔽的垂直记录器

    公开(公告)号：US07042682B2

    公开(公告)日：2006-05-09

    申请号：US10688046

    申请日：2003-10-17

    申请人： Hung Liang Hu ,  Yaw Shing Tang ,  Liji Guan ,  Kochan Ju

    发明人： Hung Liang Hu ,  Yaw Shing Tang ,  Liji Guan ,  Kochan Ju

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/127 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

    摘要： Conventional perpendicular writers that utilize an extended return pole are subject to large flux leakage. This problem has been reduced in the prior art by adding a downstream shield. This still leaves significant upstream leakage. This has now been eliminated by adding an upstream shield and then connecting the up and downstream shields by using side shields. The latter need not extend all the way from the downstream to the upstream shield in which case their thickness is increased relative to the full side shields.

    摘要翻译： 使用扩展返回极的常规垂直写入器会受到大的漏磁。 通过添加下游屏蔽，现有技术中已经减少了这个问题。 这仍然导致重大的上游泄漏。 现在已经通过添加上游屏蔽，然后通过使用侧屏蔽连接上下屏蔽来消除这一点。 后者不需要从下游延伸到上游屏蔽，在这种情况下，它们的厚度相对于全侧屏蔽增加。