Patents by Inventor Bala Krishna Pathem

Bala Krishna Pathem 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).

  • LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF
    Publication number: 20240110117
    Abstract: A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Bala Krishna Pathem, Nicholas Ryan Conley, Bruno Jean Marchon
  • Lubricants and methods to determine dewetting thickness thereof
    Patent number: 11898116
    Abstract: A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: February 13, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Bala Krishna Pathem, Nicholas Ryan Conley, Bruno Jean Marchon
  • High temperature lubricants for magnetic media
    Patent number: 11898117
    Abstract: High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: February 13, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Xingliang He, Bala Krishna Pathem
  • HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA
    Publication number: 20230250351
    Abstract: High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Inventors: Xingliang He, Bala Krishna Pathem
  • Low profile lubricants for data storage devices
    Patent number: 11572520
    Abstract: Low-profile thermally stable lubricants for data storage devices are provided based on multi-dentate molecular designs. One such lubricant comprises perfluoroalkyl ether segments, a divalent linking segment, and anchoring functional groups attachable to, or engageable with, a protective overcoat of a magnetic recording medium. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 7, 2023
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Xingliang He, Bala Krishna Pathem
  • High temperature lubricants for magnetic media
    Patent number: 11572519
    Abstract: High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 7, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Xingliang He, Bala Krishna Pathem
  • LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF
    Publication number: 20220364008
    Abstract: A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 17, 2022
    Inventors: Bala Krishna Pathem, Nicholas Ryan Conley, Bruno Jean Marchon
  • LOW PROFILE LUBRICANTS FOR DATA STORAGE DEVICES
    Publication number: 20220290066
    Abstract: Low-profile thermally stable lubricants for data storage devices are provided based on multi-dentate molecular designs. One such lubricant comprises perfluoroalkyl ether segments, a divalent linking segment, and anchoring functional groups attachable to, or engageable with, a protective overcoat of a magnetic recording medium. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 15, 2022
    Inventors: Xingliang He, Bala Krishna Pathem
  • HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA
    Publication number: 20220282176
    Abstract: High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 8, 2022
    Inventors: Xingliang He, Bala Krishna Pathem
  • Lubricants and methods to determine dewetting thickness thereof
    Patent number: 11414617
    Abstract: A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: August 16, 2022
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Bala Krishna Pathem, Nicholas Ryan Conley, Bruno Jean Marchon
  • LUBRICANTS AND METHODS TO DETERMINE DEWETTING THICKNESS THEREOF
    Publication number: 20220220406
    Abstract: A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 14, 2022
    Inventors: Bala Krishna Pathem, Nicholas Ryan Conley, Bruno Jean Marchon
  • HIGH THERMAL STABILITY LUBRICANTS
    Publication number: 20220154093
    Abstract: A multidentate lubricant comprising an anchoring moiety Ra attached to a plurality of sidechain moieties —(Rb—Re) according to the general formula: Ra—(Rb—Re)x; wherein Ra is a multivalent radical of valance x; and each sidechain includes a perfluoroethyl ether moiety. The lubricant can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 19, 2022
    Inventors: Bala Krishna Pathem, Robert James Waltman
  • Solvent-Based Mitigating Of Organic Contaminants In A Hard Disk Drive
    Publication number: 20170011778
    Abstract: Mitigating organic contaminants within a hard disk drive (HDD) may include introducing an organic solvent into the HDD to dissolve organic contaminants and, therefore, to inhibit such contaminants from fouling operation of the HDD device. Organic solvents such as toluene and/or hexane may be used to dissolve organic contaminants such as hydrocarbons and siloxanes.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 12, 2017
    Inventors: Bala Krishna Pathem, Vedantham Raman