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).
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Publication number: 20240145827Abstract: 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: ApplicationFiled: June 8, 2023Publication date: May 2, 2024Inventors: 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
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Publication number: 20240134836Abstract: 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: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Inventors: David Sitsky, Matthew Westwood Hill, Robin Power, Eddie Sheehy, Stephen Stewart
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Patent number: 9171555Abstract: 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: GrantFiled: February 6, 2015Date of Patent: October 27, 2015Assignee: Seagate Technology LLCInventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
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Publication number: 20150154985Abstract: 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: ApplicationFiled: February 6, 2015Publication date: June 4, 2015Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
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Patent number: 8982507Abstract: 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: GrantFiled: September 10, 2010Date of Patent: March 17, 2015Assignee: Seagate Technology LLCInventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacy
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Patent number: 8715024Abstract: 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: GrantFiled: February 21, 2012Date of Patent: May 6, 2014Inventor: David Westwood
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Publication number: 20140093746Abstract: 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: ApplicationFiled: September 30, 2012Publication date: April 3, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Antonio Javier Zambano, Li Tang, John David Westwood
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Publication number: 20120252291Abstract: 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: ApplicationFiled: February 21, 2012Publication date: October 4, 2012Inventor: David Westwood
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Publication number: 20120063032Abstract: 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: ApplicationFiled: September 10, 2010Publication date: March 15, 2012Inventors: Eric Meloche, Bin Lu, Lixin Jia, Jianhua Xue, John David Westwood, Mark Anthony Gubbins, Alexandru Cazacu
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Patent number: 7050655Abstract: 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: GrantFiled: August 13, 2001Date of Patent: May 23, 2006Assignee: Nevengineering, Inc.Inventors: Randall Ho, David Westwood, James Stewartson, Luciano Pasquale Agostino Nocera, Ulrich F. Buddemeier, Gregory Patrick Lane Lutter, Hartmut Neven
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Patent number: 6902826Abstract: 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: GrantFiled: August 18, 2000Date of Patent: June 7, 2005Assignee: International Business Machines CorporationInventor: John David Westwood
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Patent number: 6853518Abstract: 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: GrantFiled: February 26, 2004Date of Patent: February 8, 2005Assignee: International Business Machines CorporationInventor: John David Westwood
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Patent number: 6800178Abstract: 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: GrantFiled: January 2, 2001Date of Patent: October 5, 2004Assignee: International Business Machines CorporationInventor: John David Westwood
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Publication number: 20040165317Abstract: 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: ApplicationFiled: February 26, 2004Publication date: August 26, 2004Inventor: John David Westwood
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Patent number: 6724581Abstract: 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: GrantFiled: March 16, 2002Date of Patent: April 20, 2004Assignee: International Business Machines CorporationInventor: John David Westwood
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Patent number: 6667850Abstract: 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: GrantFiled: October 5, 2002Date of Patent: December 23, 2003Assignee: International Business Machines CorporationInventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
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Publication number: 20030036021Abstract: 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: ApplicationFiled: October 5, 2002Publication date: February 20, 2003Inventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood
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Publication number: 20030031381Abstract: 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: ApplicationFiled: August 13, 2001Publication date: February 13, 2003Inventors: Randall Ho, David Westwood, James Stewartson, Luciano Pasquale Agostino Nocera, Ulrich F. Buddemeier, Gregory Patrick Lane Lutter, Hartmut Neven
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Publication number: 20030007666Abstract: 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: ApplicationFiled: September 9, 2002Publication date: January 9, 2003Inventors: James A. Stewartson, David Westwood, Hartmut Neven
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Patent number: 6495311Abstract: 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: GrantFiled: March 17, 2000Date of Patent: December 17, 2002Assignee: International Business Machines CorporationInventors: Mahbub R. Khan, Jane Ellyn Nealis, Alfred Floyd Renaldo, John David Westwood