公开(公告)号：US09082427B1

公开(公告)日：2015-07-14

申请号：US14495986

申请日：2014-09-25

Applicant: Seagate Technology LLC

Inventor： John M. Wolf ,  Jianhua Xue ,  Kevin Heim ,  Kirill Rivkin ,  Huaqing Yin

IPC: G11B5/127

CPC classification number: G11B5/39 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/3123

Abstract: A write head having reduced dimensions. In one implementation, the write head has a main pole having a leading side and a trailing side, a leading yoke on the leading side of the main pole, and a coil wrapped around the main pole and the leading yoke. The coil on the leading side and the leading yoke having a distance of no greater than 300 nm therebetween, and the coil on the trailing side and the main pole having a distance of no greater than 350 nm therebetween. In an alternate implementation, the write head has a trailing yoke, with the coil on the trailing side and the trailing yoke having a distance of no greater than 350 nm therebetween.

公开(公告)号：US20170178669A1

公开(公告)日：2017-06-22

申请号：US14973333

申请日：2015-12-17

Applicant: Seagate Technology LLC

Inventor： Daniel W. Olson ,  John M. Wolf ,  Declan Macken ,  Gavin L. Brinkley

IPC: G11B5/09

CPC classification number: G11B5/455 ,  G11B5/40 ,  G11B5/6094

Abstract: Electrostatic discharge protection can be afforded to a data recording head in accordance with various embodiments. A data recording head may consist of a circuit having a preamp ground connected to a ground substrate via a ground trace. The ground trace can consist of a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line.

公开(公告)号：US20170133043A1

公开(公告)日：2017-05-11

申请号：US14934926

申请日：2015-11-06

Applicant: Seagate Technology LLC

Inventor： JianHua Xue ,  Debin Wang ,  Huaqing Yin ,  John M. Wolf ,  Erik J. Hutchinson ,  Wei Tian ,  Yonghua Chen

IPC: G11B5/17 ,  G11B5/60

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3163

Abstract: A data writer may be configured with at least a write pole continuously extending from an air bearing surface to a via. The write pole can contact at least one yoke that contacts the write pole. The write pole and yoke may each be disposed between and separated from a write coil that has a single turn and continuously extends to opposite sides of the write pole.

公开(公告)号：US09153257B1

公开(公告)日：2015-10-06

申请号：US14796875

申请日：2015-07-10

Applicant: Seagate Technology LLC

Inventor： John M. Wolf ,  Jianhua Xue ,  Kevin Heim ,  Kirill Rivkin ,  Huaqing Yin

IPC: G11B5/39

CPC classification number: G11B5/39 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/3123

Abstract: A write head having reduced dimensions. In one implementation, the write head has a main pole having a leading side and a trailing side, a leading yoke on the leading side of the main pole, and a coil wrapped around the main pole and the leading yoke. The coil on the leading side and the leading yoke having a distance of no greater than 300 nm therebetween, and the coil on the trailing side and the main pole having a distance of no greater than 350 nm therebetween. In an alternate implementation, the write head has a trailing yoke, with the coil on the trailing side and the trailing yoke having a distance of no greater than 350 nm therebetween.

Abstract translation: 具有缩小尺寸的写头。 在一个实施方式中，写入头具有主极，其主前侧和后侧，主极的前导侧的前轭，以及缠绕在主极和前轭上的线圈。 前导侧的线圈和前导轭之间的距离不大于300nm，后侧的线圈和主极之间的距离不大于350nm。 在替代实施例中，写头具有拖尾轭，线圈在后侧，后轭具有不大于350nm的距离。

公开(公告)号：US09697852B2

公开(公告)日：2017-07-04

申请号：US14934926

申请日：2015-11-06

Applicant: Seagate Technology LLC

Inventor： JianHua Xue ,  Debin Wang ,  Huaqing Yin ,  John M. Wolf ,  Erik J. Hutchinson ,  Wei Tian ,  Yonghua Chen

IPC: G11B5/127 ,  G11B5/17 ,  G11B5/60

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3163

Abstract: A data writer may be configured with at least a write pole continuously extending from an air bearing surface to a via. The write pole can contact at least one yoke that contacts the write pole. The write pole and yoke may each be disposed between and separated from a write coil that has a single turn and continuously extends to opposite sides of the write pole.

公开(公告)号：US20150255092A1

公开(公告)日：2015-09-10

申请号：US14201358

申请日：2014-03-07

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  Jason Gadbois ,  Eric W. Singleton ,  John M. Wolf

IPC: G11B5/39

CPC classification number: G11B5/3951 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3932 ,  G11B5/3948 ,  G11B5/3958 ,  G11B2005/3996

Abstract: Apparatus for sensing data from a magnetic recording medium using a multi-sensor reader with different readback sensitivities. In accordance with some embodiments, a data transducing head has first and second read sensors. The first read sensor is optimized for reading data and the second read sensor is optimized to detect thermal asperity (TA) events.

Abstract translation: 用于使用具有不同回读敏感度的多传感器读取器来感测来自磁记录介质的数据的装置。 根据一些实施例，数据传感头具有第一和第二读取传感器。 第一个读取传感器被优化用于读取数据，第二个读取传感器被优化以检测热不均匀性（TA）事件。

公开(公告)号：US08873199B2

公开(公告)日：2014-10-28

申请号：US14216636

申请日：2014-03-17

Applicant: Seagate Technology LLC

Inventor： Eric Roger Meolche ,  Chris Rea ,  Jianhua Xue ,  Eric Linville ,  John M. Wolf

IPC: G11B5/127 ,  G11B5/17

CPC classification number: G11B5/17 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

Abstract: A recording head comprising a write pole and a coil structure asymmetric with respect to the write pole and configured to generate more magnetic flux on a trailing side of the main pole than the magnetic flux on a front side of the main pole.

公开(公告)号：US20140268416A1

公开(公告)日：2014-09-18

申请号：US14216636

申请日：2014-03-17

Applicant: Seagate Technology LLC

Inventor： Eric Roger Meloche ,  Chris Rea ,  Jianhua Xue ,  Eric Linville ,  John M. Wolf

IPC: G11B5/17

CPC classification number: G11B5/17 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

Abstract: A recording head comprising a write pole and a coil structure asymmetric with respect to the write pole and configured to generate more magnetic flux on a trailing side of the main pole than the magnetic flux on a front side of the main pole.

Abstract translation: 一种记录头，包括相对于写极不对称的写极点和线圈结构，并被配置为在主极的前侧上产生比在主极的前侧上的磁通量更大的磁通量。

公开(公告)号：US09691419B1

公开(公告)日：2017-06-27

申请号：US14973333

申请日：2015-12-17

Applicant: Seagate Technology LLC

Inventor： Daniel W. Olson ,  John M. Wolf ,  Declan Macken ,  Gavin L. Brinkley

IPC: G11B5/40 ,  G11B5/455

CPC classification number: G11B5/455 ,  G11B5/40 ,  G11B5/6094

Abstract: Electrostatic discharge protection can be afforded to a data recording head in accordance with various embodiments. A data recording head may consist of a circuit having a preamp ground connected to a ground substrate via a ground trace. The ground trace can consist of a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line.

公开(公告)号：US09396745B2

公开(公告)日：2016-07-19

申请号：US14201358

申请日：2014-03-07

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  Jason Gadbois ,  Eric W. Singleton ,  John M. Wolf

IPC: G11B5/39

CPC classification number: G11B5/3951 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3932 ,  G11B5/3948 ,  G11B5/3958 ,  G11B2005/3996

Abstract: Apparatus for sensing data from a magnetic recording medium using a multi-sensor reader with different readback sensitivities. In accordance with some embodiments, a data transducing head has first and second read sensors. The first read sensor is optimized for reading data and the second read sensor is optimized to detect thermal asperity (TA) events.

Abstract translation: 用于使用具有不同回读敏感度的多传感器读取器来感测来自磁记录介质的数据的装置。 根据一些实施例，数据传感头具有第一和第二读取传感器。 第一个读取传感器被优化用于读取数据，第二个读取传感器被优化以检测热不均匀性（TA）事件。