Patents by Inventor Geoff Spratt

Geoff Spratt 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).

  • MAGNETIC TAPE PROCESSING
    Publication number: 20160196839
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Mike Alan Holmberg, Geoff Spratt, Brian Brong, Mike Sharrock, Steven L. Brittenham, Scott A. Swanbeck, Eric Petersen, Lawrence A. Hansen, Paul W. Poorman
  • COATING MAGNETIC TAPE HEADS
    Publication number: 20160180871
    Abstract: Techniques for protecting tape heads from wear are provided. In an example, a method includes forming a coating over elements on the magnetic tape head, wherein the elements can comprise read elements, write elements, or both and wherein the coating does not extend over adjacent tape bearing surfaces.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 23, 2016
    Inventors: Brian Brong, Mike Alan Holmberg, Charles Calvin Brooks Partee, Paul W Poorman, Mike Sharrock, Geoff Spratt, Scott Swanbeck
  • Magnetic tape processing
    Patent number: 9336808
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 10, 2016
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Mike Alan Holmberg, Geoff Spratt, Brian Brong, Mike Sharrock, Steven L. Brittenham, Scott A. Swanbeck, Eric Petersen, Lawrence A. Hansen, Paul W. Poorman
  • MAGNETIC TAPE PROCESSING
    Publication number: 20150302879
    Abstract: A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
    Type: Application
    Filed: January 31, 2013
    Publication date: October 22, 2015
    Inventors: Mike Alan HOLMBERG, Geoff SPRATT, Brian BRONG, Mike SHARROCK, Steven L. BRITTENHAM, Scott A. SWANBECK, Eric PETERSEN, Lawrence A. HANSEN, Paul W. POORMAN
  • Magnetic tape heads
    Patent number: 8873192
    Abstract: Techniques for operating tape heads are provided. In an example, a method includes detecting a potential at a sensor region, determining a target potential using a transfer function, and applying the target potential to an effector region.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: October 28, 2014
    Assignees: Hewlett-Packard Development Company, L.P., Quantum Corporation
    Inventors: Brian Brong, Richard Dee, Geoff Spratt, Mike Alan Holmberg, Robert Brummet
  • Reduction of degradation of magnetic tape apparatus
    Patent number: 8737007
    Abstract: Methods and apparatus are provided related to magnetic recording tape. Respective voltage sources are coupled to respective magnetic head components of a tape recording apparatus. Circuitry controls each voltage source independently in accordance with identity information for a magnetic tape, relative humidity within the tape recording apparatus, or other factors. Chemical migration from the tape, and/or plating or erosion of elements of the tape recording apparatus are substantially reduced or eliminated according to the present teachings.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: May 27, 2014
    Assignees: Hewlett-Packard Development Company, L.P., Quantum Corporation
    Inventors: Paul Poorman, Geoff Spratt, Mike Holmberg, Lawrence A Hansen, Brian Brong, Richard Dee
  • Determining tape head condition
    Patent number: 8570678
    Abstract: Techniques to use a model associating condition of a tape head with tape head usage are described. The tape head is for use in a magnetic tape drive. In examples, a condition of the tape head is determined using a model. In examples, the model fits determined values of the condition parameter.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Brong, Mike Alan Holmberg, Steven L. Brittenham, Michael Anthony Ellis, Saiman Kusin, Geoff Spratt
  • Neutralization of static charge on magnetic tape
    Patent number: 8553353
    Abstract: Methods and apparatus are provided related to magnetic recording tape. One or more ion emitters are disposed in non-contacting proximity to a passing recording tape. Static electric charges born on the tape are neutralized prior to passing the tape in contact with a read-write head. Migration of chemical constituency from the tape to the head is prevented or significantly reduced with a corresponding elimination or reduction of related problems.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: October 8, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael Ellis, Mike Holmberg, Eric Petersen, Paul W Poorman, Geoff Spratt
  • REDUCTION OF DEGRADATION OF MAGNETIC TAPE APPARATUS
    Publication number: 20130258517
    Abstract: Methods and apparatus are provided related to magnetic recording tape. Respective voltage sources are coupled to respective magnetic head components of a tape recording apparatus. Circuitry controls each voltage source independently in accordance with identity information for a magnetic tape, relative humidity within the tape recording apparatus, or other factors. Chemical migration from the tape, and/or plating or erosion of elements of the tape recording apparatus are substantially reduced or eliminated according to the present teachings.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Inventors: Paul Poorman, Geoff Spratt, Mike Holmberg, Lawrence A. Hansen, Brian Brong, Richard Dee
  • NEUTRALIZATION OF STATIC CHARGE ON MAGNETIC TAPE
    Publication number: 20130148238
    Abstract: Methods and apparatus are provided related to magnetic recording tape. One or more ion emitters are disposed in non-contacting proximity to a passing recording tape. Static electric charges born on the tape are neutralized prior to passing the tape in contact with a read-write head. Migration of chemical constituency from the tape to the head is prevented or significantly reduced with a corresponding elimination or reduction of related problems.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Inventors: Michael Ellis, Mike Holmberg, Eric Petersen, Paul W. Poorman, Geoff Spratt
  • DETERMINING TAPE HEAD CONDITION
    Publication number: 20130128371
    Abstract: Techniques to use a model associating condition of a tape head with tape head usage are described. The tape head is for use in a magnetic tape drive. In examples, a condition of the tape head is determined using a model. In examples, the model fits determined values of the condition parameter.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Inventors: BRIAN BRONG, Mike Alan Holmberg, Steven L. Brittenham, Michael Anthony Ellis, Saiman Kusin, Geoff Spratt