公开(公告)号：US20150162040A1

公开(公告)日：2015-06-11

申请号：US14097457

申请日：2013-12-05

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Chris Rea ,  Raul Horacio Andruet

IPC: G11B5/60

CPC classification number: G11B5/6041 ,  G11B5/3133

Abstract: A media-facing surface of a magnetic head is positioned proximate a moving magnetic recording medium. A current is applied to an electromagnet of the magnetic head. The current induces a magnetic force between the magnetic head and the magnetic recording medium that adjusts a clearance therebetween.

Abstract translation: 磁头的面向介质的表面位于移动磁记录介质附近。 电流施加到磁头的电磁体。 电流在磁头和磁记录介质之间引起磁力，从而调整它们之间的间隙。

公开(公告)号：US09019646B2

公开(公告)日：2015-04-28

申请号：US13831129

申请日：2013-03-14

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  John West Dykes ,  Housan Dakroub ,  Charles Paul Henry ,  Edward Charles Gage ,  Raul Horacio Andruet ,  James Gary Wessel ,  James Dillon Kiely ,  Bruce Douglas Buch ,  Barmeshwar Vikramaditya

IPC: G11B5/02 ,  G11B13/04 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B13/04 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.

Abstract translation: 一种装置包括：写入元件，其被配置为响应于激励电流施加磁场以在热辅助磁记录介质的一部分上写入数据。 能量源被配置为加热被写入元件磁化的介质的部分。 在将数据写入介质的一部分之前的间隔期间，将预热通电电流施加到写入元件。 在将数据写入该部分之前，预热通电电流不会导致数据被写入介质并且使写入元件和驱动器电路中的至少一个进入热平衡。

公开(公告)号：US08929016B2

公开(公告)日：2015-01-06

申请号：US13831206

申请日：2013-03-14

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Raul Horacio Andruet ,  Xiaobin Wang

IPC: G11B5/02 ,  G11B13/08 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/607 ,  G11B2005/0021

Abstract: A magnetic recording head includes a magnetic writer comprising a main write pole and a return write pole. The magnetic recording head includes a write heater assembly comprising at least one first heater subassembly and at least one second heater subassembly. At least part of the magnetic write head is disposed between the first heater subassembly and the second heater subassembly. When the first heater subassembly, the second heater subassembly, and the magnetic writer are energized, a variation in the thermal protrusion of the head media interface of the magnetic recording head may be less than about 20 nm along the down track and/or cross track directions.

Abstract translation: 磁记录头包括一个包括一个主写极和一个返回写极的磁写入器。 磁记录头包括写入加热器组件，其包括至少一个第一加热器子组件和至少一个第二加热器子组件。 磁写头的至少一部分设置在第一加热器子组件和第二加热器子组件之间。 当第一加热器子组件，第二加热器子组件和磁写入器通电时，磁记录头的磁头介质接口的热突起的变化可以沿下轨和/或交叉轨道小于约20nm 方向。

公开(公告)号：US08867323B2

公开(公告)日：2014-10-21

申请号：US13687282

申请日：2012-11-28

Applicant: Seagate Technology LLC

Inventor： Raul Horacio Andruet ,  James Gary Wessel

IPC: G11B11/00 ,  G11B17/32

CPC classification number: G11B17/32 ,  G11B5/607 ,  G11B2005/0021

Abstract: While a heat-assisted, magnetic recording media is not being written to, heat applied from a write head to the recording media to facilitate writing to the recording media is removed. Power is applied to a write coil of the write head to control spacing between the write head and the recording media when the recording media is not being written to.

Abstract translation: 当热辅助磁记录介质未被写入时，从写入头向记录介质施加的热量便于写入记录介质。 当记录介质未被写入时，将功率施加到写入头的写入线圈以控制写入头和记录介质之间的间隔。

公开(公告)号：US20140029396A1

公开(公告)日：2014-01-30

申请号：US13831129

申请日：2013-03-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  John West Dykes ,  Housan Dakroub ,  Charles Paul Henry ,  Edward Charles Gage ,  Raul Horacio Andruet ,  James Gary Wessel ,  James Dillon Kiely ,  Bruce Douglas Buch ,  Barmeshwar Vikramaditya

IPC: G11B13/04

CPC classification number: G11B13/04 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.

Abstract translation: 一种装置包括：写入元件，其被配置为响应于激励电流施加磁场以在热辅助磁记录介质的一部分上写入数据。 能量源被配置为加热被写入元件磁化的介质的部分。 在将数据写入介质的一部分之前的间隔期间，将预热通电电流施加到写入元件。 在将数据写入该部分之前，预热通电电流不会导致数据被写入介质并且使写入元件和驱动器电路中的至少一个进入热平衡。