公开(公告)号：US20150179200A1

公开(公告)日：2015-06-25

申请号：US14139438

申请日：2013-12-23

Applicant: Seagate Technology LLC

Inventor： Narayanan Ramakrishnan ,  Ajaykumar Rajasekharan

IPC: G11B5/60

CPC classification number: G11B5/6082 ,  G11B5/10 ,  G11B5/3106 ,  G11B5/6005

Abstract: The present invention is directed to a slider that includes at least one fluid pathway that is in fluid communication with an air bearing face and/or the trailing edge face of the slider. The at least one fluid pathway is configured to propel/transport a fluid such as a lubricant toward at least one side face via capillary action. The present invention is also directed to related apparatuses and methods.

Abstract translation: 本发明涉及一种滑块，其包括与滑动件的空气轴承面和/或后缘面流体连通的至少一个流体通路。 所述至少一个流体通道经配置以通过毛细作用推动/输送诸如润滑剂的流体朝向至少一个侧面。 本发明还涉及相关的装置和方法。

公开(公告)号：US20150103444A1

公开(公告)日：2015-04-16

申请号：US14055143

申请日：2013-10-16

Applicant: Seagate Technology LLC

Inventor： Gary J. Kunkel ,  David J. Ellison ,  Ajaykumar Rajasekharan

IPC: G11B5/41

CPC classification number: G11B5/41 ,  G11B5/3106 ,  G11B5/6082

Abstract: A slider, such as for a data storage system, the slider having a leading edge, a trailing edge, an air-bearing surface, and a transducer proximate the trailing edge. The slider has a low surface energy coating on the air-bearing surface and a high surface energy coating on the transducer. In some embodiments, the high surface energy coating is present on a contact sensor.

Abstract translation: 诸如用于数据存储系统的滑块，滑块具有前缘，后缘，空气轴承表面和靠近后缘的换能器。 滑块在空气轴承表面上具有低表面能涂层，在换能器上具有高表面能涂层。 在一些实施例中，高表面能涂层存在于接触传感器上。

公开(公告)号：US08810968B2

公开(公告)日：2014-08-19

申请号：US13716472

申请日：2012-12-17

Applicant: Seagate Technology LLC

Inventor： Ajaykumar Rajasekharan ,  Gary J. Kunkel

IPC: G11B5/60

CPC classification number: G11B5/6082 ,  G11B21/21

Abstract: A slider that minimizes lubricant accumulation includes bearing surfaces that provide above ambient fluid pressure, a cavity located between two bearing surfaces and at least one step feature that is spaced apart from the bearing surfaces and is located in and protrudes from a floor of the cavity at a height that is less than a height of the bearing surfaces. The at least one step feature includes surfaces configured to diverge and converge airflow in the cavity.

Abstract translation: 使润滑剂积聚最小化的滑块包括提供高于环境流体压力的轴承表面，位于两个支承表面之间的空腔和与轴承表面间隔开的并且位于空腔的底板并从腔的底部突出的至少一个台阶特征 高度小于轴承表面的高度。 所述至少一个步骤特征包括被配置成使空腔中的气流发散和会聚的表面。

公开(公告)号：US20140192440A1

公开(公告)日：2014-07-10

申请号：US13708730

申请日：2012-12-07

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Ajaykumar Rajasekharan ,  Narayanan Ramakrishnan ,  James Ronald Krolnik

IPC: G11B5/60 ,  G11B21/21

CPC classification number: G11B5/6005 ,  G11B5/6082 ,  G11B21/21

Abstract: An apparatus and associated methodology contemplating a slider body defining longitudinal extents at a leading end and a trailing end. A fluid bearing surface is formed in part by a side rail extending substantially longitudinally along the slider body and joined to a cross rail extending substantially laterally along the slider body. The side rail and the cross rail define at least a portion of a positive pressure recess. A vent is defined in the fluid bearing surface that is in fluid communication with ambient pressure fluid on one side of the side rail but is not in fluid communication with the positive pressure recess on the other side of the side rail.

Abstract translation: 一种考虑在前端和后端限定纵向范围的滑块体的装置和相关方法。 流体支承表面部分地由沿着滑块主体大致纵向延伸的侧轨形成并且连接到沿着滑块主体基本上横向延伸的横向轨道。 侧轨和横梁限定正压凹部的至少一部分。 在流体轴承表面中限定出与侧轨一侧的环境压力流体流体连通但不与侧轨的另一侧上的正压凹槽流体连通的通气口。

公开(公告)号：US20140168820A1

公开(公告)日：2014-06-19

申请号：US13716472

申请日：2012-12-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Ajaykumar Rajasekharan ,  Gary J. Kunkel

IPC: G11B5/60

CPC classification number: G11B5/6082 ,  G11B21/21

Abstract: A slider that minimizes lubricant accumulation includes bearing surfaces that provide above ambient fluid pressure, a cavity located between two bearing surfaces and at least one step feature that is spaced apart from the bearing surfaces and is located in and protrudes from a floor of the cavity at a height that is less than a height of the bearing surfaces. The at least one step feature includes surfaces configured to diverge and converge airflow in the cavity.

Abstract translation: 使润滑剂积聚最小化的滑块包括提供高于环境流体压力的轴承表面，位于两个支承表面之间的空腔和与轴承表面间隔开的并且位于空腔的底板并从腔的底部突出的至少一个台阶特征 高度小于轴承表面的高度。 所述至少一个步骤特征包括被配置成使空腔中的气流发散和会聚的表面。

公开(公告)号：US09727432B1

公开(公告)日：2017-08-08

申请号：US14510860

申请日：2014-10-09

Applicant: Seagate Technology LLC

Inventor： Craig F. Cutforth ,  Ajaykumar Rajasekharan ,  Rajaram Singaravelu

IPC: G06F11/00 ,  G06F11/263

CPC classification number: G06F11/3452 ,  G06F11/0727

Abstract: Apparatus and method for accelerated testing of a multi-device storage system. In some embodiments, the storage system includes a server adapted to communicate with a user device, and a plurality of data storage devices adapted to store and retrieve data objects from the user device. The server maintains a map structure that describes the data objects stored on the data storage devices. A fault injection module is adapted to induce simulated failures of selected data storage devices in relation to a time-varying failure rate distribution associated with the data storage devices that indicates an observed failure rate over a first time interval. The simulated failures are induced by the fault injection module over a second time interval shorter than the first time interval. The server operates to modify the map structure responsive to the simulated failures.

公开(公告)号：US09449630B2

公开(公告)日：2016-09-20

申请号：US14728291

申请日：2015-06-02

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Ajaykumar Rajasekharan ,  Gary J. Kunkel ,  David J. Ellison ,  Narayanan Ramakrishnan

IPC: G11B5/60

CPC classification number: G11B5/4813 ,  G11B5/6082

Abstract: A slider that includes a leading edge surface; a trailing edge surface; and an air bearing surface (ABS) positioned between the leading edge surface and the trailing edge surface, wherein the trailing edge surface includes a read-write element, at least one low surface energy region and at least one high surface energy region.

Abstract translation: 包括前缘表面的滑块; 后缘表面; 以及位于前缘表面和后缘表面之间的空气轴承表面（ABS），其中后缘表面包括读写元件，至少一个低表面能区域和至少一个高表面能区域。

公开(公告)号：US20160019924A1

公开(公告)日：2016-01-21

申请号：US14728291

申请日：2015-06-02

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Ajaykumar Rajasekharan ,  Gary J. Kunkel ,  David J. Ellison ,  Narayanan Ramakrishnan

IPC: G11B5/60

CPC classification number: G11B5/4813 ,  G11B5/6082

Abstract: A slider that includes a leading edge surface; a trailing edge surface; and an air bearing surface (ABS) positioned between the leading edge surface and the trailing edge surface, wherein the trailing edge surface includes a read-write element, at least one low surface energy region and at least one high surface energy region.

Abstract translation: 包括前缘表面的滑块; 后缘表面; 以及位于前缘表面和后缘表面之间的空气轴承表面（ABS），其中后缘表面包括读写元件，至少一个低表面能区域和至少一个高表面能区域。