Patents by Inventor Ajaykumar Rajasekharan

Ajaykumar Rajasekharan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170032809
    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.
    Type: Application
    Filed: September 19, 2016
    Publication date: February 2, 2017
    Inventors: Ajaykumar Rajasekharan, Gary Kunkel, David J. Ellison, Narayanan Ramakrishnan
  • Patent number: 9552836
    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.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: January 24, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Narayanan Ramakrishnan, Ajaykumar Rajasekharan
  • Patent number: 9449630
    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.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 20, 2016
    Assignee: Seagate Technology LLC
    Inventors: Ajaykumar Rajasekharan, Gary J. Kunkel, David J. Ellison, Narayanan Ramakrishnan
  • Publication number: 20160266962
    Abstract: Methods, systems, and devices are described for providing proactive cloud orchestration services for a cloud hardware infrastructure. A health management system may monitor component(s) of the cloud hardware infrastructure. The health management system may determine a failure probability metric for the component(s) based on the monitoring of the component and in consideration of historical information associated with the component, or similar components. The health management system may determine an optimization strategy for the component and, when an optimization decision has been reached, initiate a reconfiguration procedure to implement the optimization strategy. The optimization strategy may provide for mitigating or eliminating the consequences of the component failure associated with data loss, downtime, and the like.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 15, 2016
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: AJAYKUMAR RAJASEKHARAN, CHRISTIAN BRUNN MADSEN, Andrei KHURSHUDOV
  • Publication number: 20160019924
    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.
    Type: Application
    Filed: June 2, 2015
    Publication date: January 21, 2016
    Inventors: Ajaykumar Rajasekharan, Gary J. Kunkel, David J. Ellison, Narayanan Ramakrishnan
  • Patent number: 9214173
    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.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 15, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Gary J. Kunkel, David J. Ellison, Ajaykumar Rajasekharan
  • Patent number: 9202500
    Abstract: A slider that includes a slider body, the slider body having a trailing edge surface and an opposing leading edge surface; an air bearing surface (ABS) between the trailing edge surface and the leading edge surface; a read/write head located on the trailing edge surface of the slider body; an electrode array located on the trailing edge surface of the slider body, the electrode array including at least a first electrode and at least a second electrode; and first and second bias circuits, wherein the first bias circuit is electrically coupled to the at least first electrode and the second bias circuit is electrically coupled to the at least second electrode.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 1, 2015
    Assignee: Seagate Technology LLC
    Inventors: Gary J. Kunkel, Ajaykumar Rajasekharan
  • Patent number: 9153256
    Abstract: A slider, having a leading edge, a trailing edge, a working surface, and read/write heads proximate the trailing edge. The slider includes a protective overcoat over the working surface of the slider, and a self-assembled monolayer coating on the working surface of the slider and over the protective overcoat, the coating comprising at least one self-assembled monolayer material.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 6, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Ajaykumar Rajasekharan, David J. Ellison, Qian Guo
  • Patent number: 9093098
    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.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 28, 2015
    Assignee: Seagate Technology LLC
    Inventors: Ajaykumar Rajasekharan, Narayanan Ramakrishnan, James Ronald Krolnik
  • Publication number: 20150179201
    Abstract: A slider that includes a slider body, the slider body having a trailing edge surface and an opposing leading edge surface; an air bearing surface (ABS) between the trailing edge surface and the leading edge surface; a read/write head located on the trailing edge surface of the slider body; an electrode array located on the trailing edge surface of the slider body, the electrode array including at least a first electrode and at least a second electrode; and first and second bias circuits, wherein the first bias circuit is electrically coupled to the at least first electrode and the second bias circuit is electrically coupled to the at least second electrode.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 25, 2015
    Inventors: Gary J. Kunkel, Ajaykumar Rajasekharan
  • Publication number: 20150179200
    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.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Inventors: Narayanan Ramakrishnan, Ajaykumar Rajasekharan
  • Publication number: 20150103444
    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.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Applicant: Seagate Technology LLC
    Inventors: Gary J. Kunkel, David J. Ellison, Ajaykumar Rajasekharan
  • Publication number: 20150015996
    Abstract: A slider, having a leading edge, a trailing edge, a working surface, and read/write heads proximate the trailing edge. The slider includes a protective overcoat over the working surface of the slider, and a self-assembled monolayer coating on the working surface of the slider and over the protective overcoat, the coating comprising at least one self-assembled monolayer material.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 15, 2015
    Inventors: Ajaykumar Rajasekharan, David J. Ellison, Qian Guo
  • Patent number: 8810967
    Abstract: In certain embodiments, a slider includes an air bearing surface having a cavity. The cavity includes transition features at an upstream side of the cavity to mitigate air flow expansion along the cavity. Turbulence-inducing features are positioned on the transition features.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: August 19, 2014
    Assignee: Seagate Technology LLC
    Inventors: Narayanan Ramakrishnan, Ajaykumar Rajasekharan
  • Patent number: 8810968
    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.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 19, 2014
    Assignee: Seagate Technology LLC
    Inventors: Ajaykumar Rajasekharan, Gary J. Kunkel
  • Publication number: 20140192440
    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.
    Type: Application
    Filed: December 7, 2012
    Publication date: July 10, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Ajaykumar Rajasekharan, Narayanan Ramakrishnan, James Ronald Krolnik
  • Publication number: 20140168820
    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.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicant: Seagate Technology LLC
    Inventors: Ajaykumar Rajasekharan, Gary J. Kunkel
  • Publication number: 20140022672
    Abstract: In certain embodiments, a slider includes an air bearing surface having a cavity. The cavity includes transition features at an upstream side of the cavity to mitigate air flow expansion along the cavity. Turbulence-inducing features are positioned on the transition features.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Narayanan Ramakrishnan, Ajaykumar Rajasekharan