Patents by Inventor John L. Brand

John L. Brand 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).

  • Patent number: 11062734
    Abstract: A hard disk drive includes an enclosure housing a first set of magnetic recording media coupled to a first spindle motor, a second set of magnetic recording media coupled to a second spindle motor, and a third set of magnetic recording media coupled to a third spindle motor. The first set of magnetic recording media at least partially overlaps with the second set of magnetic recording media and the third set of magnetic recording media.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: July 13, 2021
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand
  • Patent number: 10957363
    Abstract: A disk drive, has a housing structure enclosing a disk and at least one recording head. The drive includes a plurality of capsules each comprising oxygen gas enclosed within a membrane. An oxygen diffusion rate of the membrane is selected to release oxygen into the housing structure at a rate that compensates for oxygen depletion within the housing structure.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: March 23, 2021
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand
  • Patent number: 10566031
    Abstract: The present disclosure includes embodiments of an electrical device that includes an interior having a saturated salt solution and desiccant disposed therein to manage the relative humidity of the interior.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: February 18, 2020
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand
  • Patent number: 10529364
    Abstract: Provided herein is a magnetic write head including a near field transducer and a magnetic recording media including a media lubricant. The media lubricant includes a first portion and a second portion. The second portion of the media lubricant is evaporated in response to heat emitted from the near field transducer. The second portion of the media lubricant that is evaporated removes a contaminant over the near field transducer.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: January 7, 2020
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: John L. Brand, James D. Kiely
  • Publication number: 20190318767
    Abstract: The present disclosure includes embodiments of an electrical device that includes an interior having a saturated salt solution and desiccant disposed therein to manage the relative humidity of the interior.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 17, 2019
    Inventor: John L Brand
  • Patent number: 10373632
    Abstract: Provided herein is a magnetic write head including a near field transducer and a magnetic recording media including a media lubricant. The media lubricant includes a first portion and a second portion. The second portion of the media lubricant is evaporated in response to heat emitted from the near field transducer. The second portion of the media lubricant that is evaporated removes a contaminant over the near field transducer.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: August 6, 2019
    Assignee: Seagate Technology LLC
    Inventors: John L. Brand, James D. Kiely
  • Publication number: 20180233166
    Abstract: Provided herein is a magnetic write head including a near field transducer and a magnetic recording media including a media lubricant. The media lubricant includes a first portion and a second portion. The second portion of the media lubricant is evaporated in response to heat emitted from the near field transducer. The second portion of the media lubricant that is evaporated removes a contaminant over the near field transducer.
    Type: Application
    Filed: January 8, 2018
    Publication date: August 16, 2018
    Inventors: John L. BRAND, James D. KIELY
  • Publication number: 20180233168
    Abstract: Provided herein is a magnetic write head including a near field transducer and a magnetic recording media including a media lubricant. The media lubricant includes a first portion and a second portion. The second portion of the media lubricant is evaporated in response to heat emitted from the near field transducer. The second portion of the media lubricant that is evaporated removes a contaminant over the near field transducer.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 16, 2018
    Inventors: John L. BRAND, James D. KIELY
  • Publication number: 20160232946
    Abstract: A method of making a disc drive assembly comprising a plurality of components, the method comprising providing a self-assembled monolayer coating on at least one piece of process equipment that contacts at least one of the plurality of components. The self-assembled monolayer coating is not present in the assembled disc drive assembly.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 11, 2016
    Inventors: Timothy Stoebe, David J. Ellison, Robert A. Fernandez, John L. Brand
  • Patent number: 9373361
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 21, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Gary Joseph Kunkel, John L. Brand
  • Publication number: 20150380021
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Application
    Filed: August 17, 2015
    Publication date: December 31, 2015
    Inventors: Gary Joseph Kunkel, John L. Brand
  • Patent number: 9111572
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: August 18, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Gary Joseph Kunkel, John L. Brand
  • Publication number: 20150030887
    Abstract: A data storage device including a substrate; a magnetic structure deposited on the substrate; and a molecular overcoat deposited on the magnetic structure, the molecular overcoat having a thickness of not greater than about 100 ?.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventor: John L. Brand
  • Publication number: 20140268419
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 18, 2014
    Applicant: Seagate Technology LLC
    Inventors: Gary Joseph Kunkel, John L. Brand
  • Patent number: 8760811
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 24, 2014
    Assignee: Seagate Technology LLC
    Inventors: Gary J. Kunkel, John L. Brand
  • Publication number: 20140113160
    Abstract: Articles that include a magnetic structure; an intermediate layer, the intermediate layer positioned on the magnetic structure, the intermediate layer having a thickness from about 3 ? to about 50 ?, the intermediate layer including a bottom interface layer, the bottom interface layer positioned adjacent the magnetic structure, the bottom interface layer including atoms of a metal bonded to atoms, compounds, or both of the magnetic structure; an interlayer, the interlayer positioned on the bottom interface layer, the interlayer including oxides of the metal; and a top interface layer, the top interface layer positioned adjacent the interlayer, the top interface layer including atoms of the metal, oxides of the metal, or some combination thereof bonded to atoms or compounds of the adjacent overcoat layer; and an overcoat layer, the overcoat layer positioned on the top interface layer of the intermediate layer.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 24, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Philip G. Pitcher, John L. Brand, Edwin F. Rejda, Richard M. Fuller
  • Patent number: 8432636
    Abstract: An aspect of the disclosure relates to data storage heater systems with diodes. In one embodiment, data storage systems include a first electrical connection point, a second electrical connection point, a first electrical branch, and a second electrical branch. The first electrical branch is connected to the first and the second electrical connection points. The first electrical branch has first and second diodes biased in a first direction. The second electrical branch is connected to the first and second electrical connection points. The second electrical branch has third and fourth diodes biased in a second direction.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: April 30, 2013
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand
  • Publication number: 20120176873
    Abstract: An aspect of the disclosure relates to data storage heater systems with diodes. In one embodiment, data storage systems include a first electrical connection point, a second electrical connection point, a first electrical branch, and a second electrical branch. The first electrical branch is connected to the first and the second electrical connection points. The first electrical branch has first and second diodes biased in a first direction. The second electrical branch is connected to the first and second electrical connection points. The second electrical branch has third and fourth diodes biased in a second direction.
    Type: Application
    Filed: March 15, 2012
    Publication date: July 12, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventor: John L. Brand
  • Publication number: 20120120527
    Abstract: A multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 17, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Gary J. Kunkel, John L. Brand
  • Patent number: 8159780
    Abstract: Recording heads for a data storage system include a first diode, a second diode, and a first electrical component. The first electrical component is electrically connected in series to the first and second diodes. In another embodiment, recording heads include first, second, third, and fourth electrical connection points. A read transducer is electrically connected to the first and second electrical connection points. A write transducer is electrically connected to the first and third electrical connection points. A first heater and a second heater are electrically connected to the first and fourth electrical connection points.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 17, 2012
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand