Patents by Inventor Peter Kevin McGeehin

Peter Kevin McGeehin 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: 20230114979
    Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 13, 2023
    Inventors: Robert D. Turner, Yuhang Cheng, Peter W. Kanas, Martin Liam McGarry, Peter Kevin McGeehin, Kevin R. Heim, Edward Charles Gage, Shaikh Mubassar Ali, Huazhou Lou
  • Patent number: 11475924
    Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: October 18, 2022
    Assignee: Seagate Technology LLC
    Inventors: Robert D. Turner, Yuhang Cheng, Peter W. Kanas, Martin Liam McGarry, Peter Kevin McGeehin, Kevin R. Heim, Edward Charles Gage, Shaikh Mubassar Ali, Huazhou Lou
  • Publication number: 20210210121
    Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Inventors: Robert D. Turner, Yuhang Cheng, Peter W. Kanas, Martin Liam McGarry, Peter Kevin McGeehin, Kevin R. Heim, Edward Charles Gage, Shaikh Mubassar Ali, Huazhou Lou
  • Patent number: 10366720
    Abstract: An apparatus comprises a slider comprising an air bearing surface (ABS) and configured for heat-assisted magnetic recording. The slider includes a writer and a reader at the ABS, a near-field transducer (NFT) proximate the writer, and an optical waveguide optically coupled to a laser source and the NFT. The slider further includes a sensor configured to contact and sense thermal asperities of a magnetic recording medium. The sensor is formed from one of Ru, Rh, Pd, Os, Ir, and Pt.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 30, 2019
    Assignee: Seagate Technology LLC
    Inventors: Declan Macken, Paul Julio Sonda, Peter Kevin McGeehin
  • Patent number: 10311898
    Abstract: Devices that include a near field transducer (NFT) the NFT includes a bulk of at least one plasmonic material and at least one sacrificial metal; and a surface layer that includes an oxide of the at least one sacrificial metal.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: June 4, 2019
    Assignee: Seagate Technology LLC
    Inventors: Mark Anthony Gubbins, Peter Kevin McGeehin, Marcus Benedict Mooney, Michael James Hardy
  • Publication number: 20190066719
    Abstract: An apparatus comprises a slider comprising an air bearing surface (ABS) and configured for heat-assisted magnetic recording. The slider includes a writer and a reader at the ABS, a near-field transducer (NFT) proximate the writer, and an optical waveguide optically coupled to a laser source and the NFT. The slider further includes a sensor configured to contact and sense thermal asperities of a magnetic recording medium. The sensor is formed from one of Ru, Rh, Pd, Os, Ir, and Pt.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventors: Declan Macken, Paul Julio Sonda, Peter Kevin McGeehin
  • Patent number: 10192577
    Abstract: An apparatus comprises a slider having a media-facing surface and that is configured for heat-assisted magnetic recording. The slider comprises a write pole, a heatsink layer, and a diffusing metal. The write pole includes two or more sides extending into the slider and a pole tip at the media-facing surface. The heatsink layer is proximate at least part of the two or more sides of the write pole, and a first portion of the heatsink layer is proximate the pole tip. The diffusing metal is disposed proximate the write pole.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 29, 2019
    Assignee: Seagate Technology LLC
    Inventors: Peter Kevin McGeehin, Mark Anthony Gubbins
  • Patent number: 10041184
    Abstract: Disclosed herein are methods of forming one or more transducer elements in a transducer region of a slider by electrodepositing one or more metal ions from an ionic liquid solvent, and related sliders.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: August 7, 2018
    Assignee: Seagate Technology LLC
    Inventors: Peter Kevin McGeehin, Mark Anthony Gubbins, Marcus Benedict Mooney
  • Publication number: 20180087175
    Abstract: Disclosed herein are methods of forming one or more transducer elements in a transducer region of a slider by electrodepositing one or more metal ions from an ionic liquid solvent, and related sliders.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 29, 2018
    Inventors: Peter Kevin McGeehin, Mark Anthony Gubbins, Marcus Benedict Mooney
  • Patent number: 9834850
    Abstract: Disclosed herein are methods of forming one or more transducer elements in a transducer region of a slider by electrodepositing one or more metal ions from an ionic liquid solvent, and related sliders.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: December 5, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Peter Kevin McGeehin, Mark Anthony Gubbins, Marcus Benedict Mooney