公开(公告)号：US09734855B1

公开(公告)日：2017-08-15

申请号：US15202704

申请日：2016-07-06

Applicant: Seagate Technology LLC

Inventor： Vijayaharan A. Venugopal ,  Beverley R. McConnell ,  Marcus B. Mooney ,  Mark A. Gubbins

IPC: G11B5/33 ,  G11B5/60

CPC classification number: G11B5/6082 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/232 ,  G11B5/235 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169 ,  G11B5/33

Abstract: A data writer can have at least a write pole separated from a return pole by a non-magnetic lamination. The non-magnetic lamination may consist of first, second, and third non-magnetic materials that are each different and configured to provide a physical protrusion on an air bearing surface of less than 4 Angstroms.

公开(公告)号：US20160180868A1

公开(公告)日：2016-06-23

申请号：US14975214

申请日：2015-12-18

Applicant: Seagate Technology LLC

Inventor： Mark Anthony Gubbins ,  Vijayaharan A. Venugopal ,  Marcus Benedict Mooney ,  Adam Andrzej Lapicki ,  Muhammad Asif Bashir ,  Prim Gangmei

IPC: G11B5/31

CPC classification number: G11B5/3116 ,  G11B5/3143 ,  G11B5/3906 ,  G11B5/3912

Abstract: A write pole structure includes a write pole and a trailing shield wherein the write pole includes a high magnetic moment (HMM) material layer on a surface of the write pole facing the trailing shield, wherein the HMM material layer includes a laminated layer including a rare earth material layer and a transition metal layer.

Abstract translation: 写柱结构包括写极和后屏蔽，其中所述写极包括面对所述后屏蔽的所述写磁极的表面上的高磁矩（HMM）材料层，其中所述HMM材料层包括包含稀有 土壤材料层和过渡金属层。

公开(公告)号：US09899042B1

公开(公告)日：2018-02-20

申请号：US15018311

申请日：2016-02-08

Applicant: Seagate Technology LLC

Inventor： Vijayaharan A. Venugopal ,  Muhammad Asif Bashir ,  Peter McGeehin ,  Marcus B. Mooney ,  Mark Gubbins

IPC: G11B5/11 ,  G11B5/235 ,  G11B5/31 ,  G11B5/127

CPC classification number: G11B5/315 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/235 ,  G11B5/3146

Abstract: A data storage device data writer may arrange a write pole to be positioned uptrack from a front shield on an air bearing surface. The front shield can consist of a lamination of a first magnetic alloy material and a second magnetic alloy material. The second magnetic alloy material may be NiFe that has 80% iron by weight.

公开(公告)号：US09773512B2

公开(公告)日：2017-09-26

申请号：US14975214

申请日：2015-12-18

Applicant: Seagate Technology LLC

Inventor： Mark Anthony Gubbins ,  Vijayaharan A. Venugopal ,  Marcus Benedict Mooney ,  Adam Andrzej Lapicki ,  Muhammad Asif Bashir ,  Prim Gangmei

IPC: G11B5/31 ,  G11B5/39

CPC classification number: G11B5/3116 ,  G11B5/3143 ,  G11B5/3906 ,  G11B5/3912

Abstract: A write pole structure includes a write pole and a trailing shield wherein the write pole includes a high magnetic moment (HMM) material layer on a surface of the write pole facing the trailing shield, wherein the HMM material layer includes a laminated layer including a rare earth material layer and a transition metal layer.