公开(公告)号：US09171555B2

公开(公告)日：2015-10-27

申请号：US14615940

申请日：2015-02-06

Applicant: Seagate Technology LLC

Inventor： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

IPC: G11B5/33 ,  G11B5/11 ,  G11B5/127 ,  G11B5/31

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

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：US20140153133A1

公开(公告)日：2014-06-05

申请号：US13692471

申请日：2012-12-03

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Kevin Heim ,  Jianhua Xue ,  Huaqing Yin

IPC: G11B5/105

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: A magnetic element may be generally configured as a data writer constructed at least with a write pole positioned within and separated from a box shield by a write gap. The box shield may be configured to maintain at least a separation distance from a first side of a leading edge of the write pole to an opposite second side of the leading edge.

Abstract translation: 通常将磁性元件配置为数据写入器，至少写入写入磁极位于盒屏蔽内并由写入间隙分离。 盒式屏蔽可以被配置为保持与写入极的前缘的第一侧至前缘的相对的第二侧的至少间隔距离。

公开(公告)号：US20160064018A1

公开(公告)日：2016-03-03

申请号：US14798998

申请日：2015-07-14

Applicant: Seagate Technology LLC

Inventor： Jianhua Xue ,  Jiaoming Qiu ,  Kirill Rivkin ,  Huaqing Yin ,  John Wolf ,  Yonghua Chen

IPC: G11B5/17 ,  G11B5/60

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.

Abstract translation: 一种写头，其主极具有靠近空气轴承表面（ABS）的极尖，所述主极具有前侧和后侧。 写头还包括具有从ABS凹陷的轭头的磁轭和缠绕在主极和磁轭上的螺旋线圈。 螺旋线圈具有第一匝，其前缘至少基本上与轭尖对齐。

公开(公告)号：US09159340B1

公开(公告)日：2015-10-13

申请号：US14471933

申请日：2014-08-28

Applicant: Seagate Technology LLC

Inventor： Jiaoming Qiu ,  Jianhua Xue ,  Kevin Heim ,  Kirill Rivkin ,  Huaqing Yin ,  John Wolf ,  Yonghua Chen

IPC: G11B5/17 ,  G11B5/31

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3123 ,  G11B5/313

Abstract: A write head having a main pole having a pole tip, the main pole having a leading side and a trailing side; and a coil structure around the main pole, the coil structure having no more than two active turns on the trailing side. A non-active, or dummy turn, may be present.

Abstract translation: 一种写头，具有具有极尖的主极，所述主极具有前侧和后侧; 以及围绕主极的线圈结构，线圈结构在后侧不超过两个有效转弯。 可能存在非活动或虚拟转弯。

公开(公告)号：US09082428B1

公开(公告)日：2015-07-14

申请号：US14471959

申请日：2014-08-28

Applicant: Seagate Technology LLC

Inventor： Jianhua Xue ,  Jiaoming Qiu ,  Kirill Rivkin ,  Huaqing Yin ,  John Wolf ,  Yonghua Chen

IPC: G11B5/17 ,  G11B5/31 ,  G11B5/127

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.

Abstract translation: 一种写头，其主极具有靠近空气轴承表面（ABS）的极尖，所述主极具有前侧和后侧。 写头还包括具有从ABS凹陷的轭头的磁轭和缠绕在主极和磁轭上的螺旋线圈。 螺旋线圈具有第一匝，其前缘至少基本上与轭尖对齐。

公开(公告)号：US20140146417A1

公开(公告)日：2014-05-29

申请号：US13689337

申请日：2012-11-29

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Eric Shane Linville ,  Jianhua Xue ,  Eric Roger Meloche ,  Huaqing Yin ,  Yonghua Chen

IPC: G11B5/127

CPC classification number: G11B5/11 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: A data writer may be generally configured at least with a write pole that has a pole sidewall and a continuous first taper angle connecting leading and trailing edges. The write pole can be positioned adjacent to a side shield that is configured with first and second shield sidewalls tapered to a shield tip that is the closest point between the write pole and side shield.

Abstract translation: 数据写入器可以至少一般配置有具有极侧壁的写极和连接前缘和后缘的连续的第一锥角。 写入极可以定位成与侧屏蔽相邻，该侧屏蔽配置有逐渐变细到作为写极和侧屏蔽之间最靠近的屏蔽尖端的第一和第二屏蔽侧壁。

公开(公告)号：US20130022841A1

公开(公告)日：2013-01-24

申请号：US13630893

申请日：2012-09-28

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Jianhua Xue ,  Yuming Zhou ,  Dehua Han ,  Eric S. Linville

IPC: G11B5/33 ,  G11B5/23 ,  G11B5/187

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/2457 ,  G11B5/3116 ,  Y10T428/1186

Abstract: The application discloses a magnetic pole assembly having a pole tip arranged in a magnetic flux path and side shields separated from the pole tip by non-magnetic gap regions. The side shields are shaped to provide a differential shielding effect alongside the pole tip. As described, the sides shields are shaped to provide a non-magnetic gap region having a width that increases in the downtrack direction along a length of the pole tip. The increasing non-magnetic gap region alongside the pole tip provides a smaller non-magnetic gap region separating the pole tip from the side shields at the leading edge than the non-magnetic gap region separating the pole tip from the side shields at the trailing edge of the pole tip.

Abstract translation: 该申请公开了一种磁极组件，其具有布置在磁通路径中的极尖和由非磁隙区域与极尖分离的侧屏蔽。 侧面屏蔽件被成形为在极尖附近提供差分屏蔽效应。 如所描述的那样，侧面屏蔽件被成形为提供具有在极尖端的长度方向上沿着倾斜方向增加的宽度的非磁性间隙区域。 与极尖一起增加的非磁隙区域提供了一个较小的非磁性间隙区域，该非磁性间隙区域将磁极尖端与前缘上的侧屏蔽件分开，而非磁性间隙区域将磁极尖端与后端边缘侧屏蔽件分开 的极点。

公开(公告)号：US20240331724A1

公开(公告)日：2024-10-03

申请号：US18436496

申请日：2024-02-08

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： James G. Wessel ,  Manish Kapoor ,  Jianhua Xue

IPC: G11B5/187 ,  G11B5/00

CPC classification number: G11B5/187 ,  G11B2005/0021 ,  G11B2209/02

Abstract: Described is a recording head that includes a notched write pole to enhance perpendicularity of the write pole field. The write pole notch is formed at the media-facing surface and the leading edge of the write pole. The write pole notch is filled with a non-magnetic metal. The recording head further includes a near field transducer located in front of the leading edge of the write pole and having a portion extending to the media-facing surface that is spaced apart from the notch, thereby forming a gap between the near field transducer and the notch.

公开(公告)号：US09318131B2

公开(公告)日：2016-04-19

申请号：US13930776

申请日：2013-06-28

Applicant: Seagate Technology LLC

Inventor： Wei Tian ,  Huaqing Yin ,  Yan Dong ,  Joseph M. Mundenar ,  Jianhua Xue

IPC: G11B5/31 ,  G11B5/23

CPC classification number: G11B5/23 ,  G11B5/232 ,  G11B5/3116

Abstract: The present application relates to a write gap structure for a magnetic recording head. In illustrated embodiments, the write gap structure includes multiple write gap segments along a beveled pole tip surface between a top edge and a bottom edge of the beveled pole tip surface to provide a narrow write gap proximate to the air bearing surface and a larger write gap behind the air bearing surface. In illustrated embodiments, the narrow write gap segment is formed between the beveled pole tip surface and a lower back surface of front shield and the larger write gap is formed between the beveled pole tip surface and an upper back surface of the front shield.

Abstract translation: 本申请涉及用于磁记录头的写间隙结构。 在示出的实施例中，写间隙结构包括沿着倾斜磁极尖端表面的顶部边缘和底部边缘之间的斜面磁极尖端表面的多个写入间隙段，以提供靠近空气轴承表面的窄写入间隙和更大的写入间隙 在空气轴承表面后面。 在图示的实施例中，狭窄的写入间隙段形成在斜面极尖表面和前屏蔽的下后表面之间，并且较大的写入间隙形成在斜面极尖表面与前屏蔽的上后表面之间。