-
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
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：US10600438B2
公开(公告)日：2020-03-24
申请号：US16369297
申请日：2019-03-29
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan
Abstract: A method includes producing a first surface acoustic wave (SAW) on a magnetic head slider using a first interdigitated transducer (IDT), wherein the SAW has a first set of wave characteristics. The method also includes receiving the first SAW at a second IDT on the magnetic head slider. The method also includes analyzing the SAW for a second set of wave characteristics. The method also includes determining, based on the analyzing, that a substance having at least one characteristic is located in a path of the SAW on the magnetic head slider.
-
13.发明授权公开(公告)号：US09812158B1
公开(公告)日：2017-11-07
申请号：US15370985
申请日：2016-12-06
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan , Declan Macken
CPC classification number: G11B5/4853 , G11B5/607 , G11B5/6076 , G11B2005/0021
Abstract: A slider of a magnetic recording head comprises a plurality of electrical bond pads coupled to bias sources and a ground pad. Each of a plurality of electrical components of the slider is coupled one or more of the electrical bond pads, wherein at least one of the electrical bond pads is a shared electrical bond pad coupled to at least a first electrical component and a second electrical component. A switching transistor is coupled to the first and second components and the ground pad. The switching transistor is arranged to control powering of the second component in response to biasing of the first component.
-
公开(公告)号：US09805750B1
公开(公告)日：2017-10-31
申请号：US15192407
申请日：2016-06-24
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan , Vijay Kumar
IPC: G11B5/48
CPC classification number: G11B5/4833 , G11B5/484
Abstract: A data storage device can have a suspension with a loadbeam. The loadbeam can be configured with one or more a stiffening features. The loadbeam and stiffening feature may be constructed as products of a single piece of material. The stiffening feature can be defined by a varying thickness of the loadbeam.
-
公开(公告)号：US09741375B2
公开(公告)日：2017-08-22
申请号：US14946166
申请日：2015-11-19
Applicant: Seagate Technology LLC
Inventor： Gary Joseph Kunkel , Narayanan Ramakrishnan
CPC classification number: G11B5/40 , G11B5/6017 , G11B5/607 , G11B2005/0021
Abstract: A slider of a magnetic recording head has a leading edge, a trailing edge, and an air bearing surface between the leading and trailing edges. A sensor is situated at the trailing edge of the slider and configured to sense presence of a lube droplet or other contaminant at the trailing edge.
-
Patent Agency Ranking
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：US09251824B1
公开(公告)日：2016-02-02
申请号：US14607671
申请日：2015-01-28
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Vijay Kumar , Narayanan Ramakrishnan
CPC classification number: G11B20/10268 , G11B5/4826 , G11B5/483 , G11B5/5552 , G11B5/5573
Abstract: An apparatus and associated method employing a bridge circuit having first and second microactuators attached to the apparatus. An excitation source is configured to independently drive each of the microactuators. A computation module is connected to the bridge circuit and is configured to independently measure an electrical output of each microactuator. The computation module uses the electrical outputs to characterize a bimodal modulation of the apparatus.
Abstract translation: 一种使用桥接电路的装置和相关方法，该桥接电路具有连接到该装置的第一和第二微致动器。 激励源被配置为独立地驱动每个微致动器。 计算模块连接到桥式电路，并被配置为独立地测量每个微型致动器的电输出。 计算模块使用电气输出来表征装置的双模式调制。
-
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。
-
公开(公告)号：US11087790B2
公开(公告)日：2021-08-10
申请号：US16814028
申请日：2020-03-10
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan
Abstract: A method includes producing a first surface acoustic wave (SAW) on a magnetic head slider using a first interdigitated transducer (IDT), wherein the SAW has a first set of wave characteristics. The method also includes receiving the first SAW at a second IDT on the magnetic head slider. The method also includes analyzing the SAW for a second set of wave characteristics. The method also includes determining, based on the analyzing, that a substance having at least one characteristic is located in a path of the SAW on the magnetic head slider.
-
公开(公告)号：US20200211589A1
公开(公告)日：2020-07-02
申请号：US16814028
申请日：2020-03-10
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan
Abstract: A method includes producing a first surface acoustic wave (SAW) on a magnetic head slider using a first interdigitated transducer (IDT), wherein the SAW has a first set of wave characteristics. The method also includes receiving the first SAW at a second IDT on the magnetic head slider. The method also includes analyzing the SAW for a second set of wave characteristics. The method also includes determining, based on the analyzing, that a substance having at least one characteristic is located in a path of the SAW on the magnetic head slider.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.017 seconds)
