Patents by Inventor David Westwood

David Westwood 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: 20240145827
    Abstract: Systems and methods of the various embodiments may provide a battery including a rolling diaphragm configured to move to accommodate an internal volume change of one or more components of the battery. Systems and methods of the various embodiments may provide a battery housing including a rolling diaphragm seal disposed between an interior volume of the battery and an electrode assembly within the battery. Various embodiments may provide an air electrode assembly including an air electrode supported on a buoyant platform such that the air electrode is above a surface of a volume of electrolyte when the buoyant platform is floating in the electrolyte.
    Type: Application
    Filed: June 8, 2023
    Publication date: May 2, 2024
    Inventors: Mitchell Terrance WESTWOOD, Alexander H. SLOCUM, William Henry WOODFORD, Yet-Ming CHIANG, Ian Salmon MCKAY, Mateo Cristian JARAMILLO, Eric WEBER, Jarrod David MILSHTEIN, Liang SU, Rupak CHAKRABORTY, Rachel Elizabeth MUMMA, Marc-Antoni GOULET, Brian BEGGAN, Marco FERRARA, Theodore Alan WILEY
  • Publication number: 20240134836
    Abstract: The invention relates to electronic indexing, and more particularly, to the indexing, in a cloud, data held in a cloud. Systems and methods of the invention index data by accessing the data in place in the cloud and breaking a job into work items and sending the work items to multiple cloud processes that can each determine whether to index data associated with the work item or to create a new work item and have a different cloud process index the data. Each cloud process is proximal to an item that it indexes. This gives the system scale as well as an internal load-balancing.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: David Sitsky, Matthew Westwood Hill, Robin Power, Eddie Sheehy, Stephen Stewart
  • Patent number: 9171555
    Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: October 27, 2015
    Assignee: Seagate Technology LLC
    Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
  • Publication number: 20150154985
    Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
  • Patent number: 8982507
    Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 17, 2015
    Assignee: Seagate Technology LLC
    Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacy
  • Patent number: 8715024
    Abstract: A flotation device comprises a shoulder strap and a cross strap connected to the shoulder strap. There is an inflatable bladder extending along the shoulder strap and an inflation means for inflating the inflatable bladder. The shoulder strap is configured to extend over one shoulder of the user and under a first arm of the user. The first arm of the user is opposite to the said one shoulder of the user. The cross strap is configured to extend under a second arm of the user.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: May 6, 2014
    Inventor: David Westwood
  • Publication number: 20140093746
    Abstract: An apparatus includes a disk substrate and a soft underlayer overlying the disk substrate. A magnetic seed layer overlies the soft underlayer, wherein the magnetic seed layer is formed by a hexagonal close-packed lattice material and has in-plane magnetic anisotropy.
    Type: Application
    Filed: September 30, 2012
    Publication date: April 3, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Antonio Javier Zambano, Li Tang, John David Westwood
  • Publication number: 20120252291
    Abstract: A flotation device comprises a shoulder strap and a cross strap connected to the shoulder strap. There is an inflatable bladder extending along the shoulder strap and an inflation means for inflating the inflatable bladder. The shoulder strap is configured to extend over one shoulder of the user and under a first arm of the user. The first arm of the user is opposite to the said one shoulder of the user. The cross strap is configured to extend under a second arm of the user.
    Type: Application
    Filed: February 21, 2012
    Publication date: October 4, 2012
    Inventor: David Westwood
  • Publication number: 20120063032
    Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 15, 2012
    Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
  • Patent number: 7050655
    Abstract: The invention relates to a technique for generating an animated three-dimensional video head based on sensed locations of facial features and texture mapping of corresponding two dimensional video image frames onto a shaped head mesh generated using the sensed locations.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: May 23, 2006
    Assignee: Nevengineering, Inc.
    Inventors: Randall Ho, David Westwood, James Stewartson, Luciano Pasquale Agostino Nocera, Ulrich F. Buddemeier, Gregory Patrick Lane Lutter, Hartmut Neven
  • Patent number: 6902826
    Abstract: A film structure and deposition method for creating laminated Fe—M—N and Fe—M—O—N films which retain good anisotropy after HA annealing are provided. Interleaved layers of thin alumina laminations between the Fe—M—[O]—N layers and sublayer alumina nanolaminations within the Fe—M—[O]—N layers create stable magnetic anisotropy in the film. The magnetic anisotropy in the film survives HA annealing at hardbake resist curing conditions in wafer manufacturing processes for GMR magnetic recording heads.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: June 7, 2005
    Assignee: International Business Machines Corporation
    Inventor: John David Westwood
  • Patent number: 6853518
    Abstract: A specified amount of N2O or N2 is employed in a process gas of a DC magnetron for sputter depositing single or laminated films of NiFeCo—O—N or NiFeCo—N with a high uniaxial anisotropy HK after annealing these films along their hard axes. The films can be used for shield layers and/or pole piece layers in a magnetic head.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: February 8, 2005
    Assignee: International Business Machines Corporation
    Inventor: John David Westwood
  • Patent number: 6800178
    Abstract: A specified amount of N2O or N2 is employed in a process gas of a DC magnetron for sputter depositing single or laminated films of NiFeCo—O—N or NiFeCo—N with a high uniaxial anisotropy HK after annealing these films along their hard axes. The films can be used for shield layers and/or pole piece layers in a magnetic head.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: October 5, 2004
    Assignee: International Business Machines Corporation
    Inventor: John David Westwood
  • Publication number: 20040165317
    Abstract: A specified amount of N2O or N2 is employed in a process gas of a DC magnetron for sputter depositing single or laminated films of NiFeCo—O—N or NiFeCo—N with a high uniaxial anisotropy HK after annealing these films along their hard axes. The films can be used for shield layers and/or pole piece layers in a magnetic head.
    Type: Application
    Filed: February 26, 2004
    Publication date: August 26, 2004
    Inventor: John David Westwood
  • Patent number: 6724581
    Abstract: A method employs an RF magnetron sputtering system under specific process conditions for making shield and pole piece ferromagnetic layers of a read write magnetic head wherein the magnetic anisotropy HK of the ferromagnetic layers is substantially maintained without easy axes switching when annealed along their hard axes in the presence of a magnetic field (hard axis annealing).
    Type: Grant
    Filed: March 16, 2002
    Date of Patent: April 20, 2004
    Assignee: International Business Machines Corporation
    Inventor: John David Westwood
  • Patent number: 6667850
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: December 23, 2003
    Assignee: International Business Machines Corporation
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
  • Publication number: 20030036021
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Application
    Filed: October 5, 2002
    Publication date: February 20, 2003
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
  • Publication number: 20030031381
    Abstract: The invention relates to a technique for generating an animated three-dimensional video head based on sensed locations of facial features and texture mapping of corresponding two dimensional video image frames onto a shaped head mesh generated using the sensed locations.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 13, 2003
    Inventors: Randall Ho, David Westwood, James Stewartson, Luciano Pasquale Agostino Nocera, Ulrich F. Buddemeier, Gregory Patrick Lane Lutter, Hartmut Neven
  • Publication number: 20030007666
    Abstract: The present invention is embodied in a method and apparatus for relief texture map flipping. The relief texture map flipping technique provides realistic avatar animation in a computationally efficient manner.
    Type: Application
    Filed: September 9, 2002
    Publication date: January 9, 2003
    Inventors: James A. Stewartson, David Westwood, Hartmut Neven
  • Patent number: 6495311
    Abstract: The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes an additive photolithographic technique including a bilayer liftoff resist. In this fabrication method magnetic pole trenches are formed in the bilayer liftoff resist such that an undercut exists in the liftoff layer. Thereafter, the laminated NiFeN/FeN structure is sputter deposited into the trench, followed by the wet chemical removal of the bilayer resist.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: December 17, 2002
    Assignee: International Business Machines Corporation
    Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood