Patents by Inventor Andrew D. White

Andrew D. White 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: 7466520
    Abstract: A suspension comprises a load beam having a leading portion and a trailing portion, a gimbal sheet mounted to the leading portion and forming a first pad, a second pad, and a displacement lever assembly including at least a first lever arm having a first end adjacent and connected to the first pad and a second end opposite the first end and connected to the second pad. The displacement lever assembly is configured to translate a linear displacement of the first pad to a differing displacement of the second pad. The suspension comprises a piezoelectric element attached to the first pad and extending across the second pad.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: December 16, 2008
    Assignee: Seagate Technology LLC
    Inventors: Andrew D. White, Wayne A. Bonin, Zine-Eddine Boutaghou
  • Publication number: 20080174906
    Abstract: In general, the invention is directed to techniques for integrated interconnects with a set of disc drives. The interconnects allow for a set of disc drives to be positioned in an array; for example, as set of disc drives may be stacked to communicate with a device through a single interface of the device. The interconnects may be formed as vias within the housing of the disc drives. Vias may produced using MEMS techniques, e.g., electroplating, as part of the manufacturing processes of the disc drive itself.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Alan B. Johnston, Roger L. Hipwell, Bradley J. Ver Meer, John R. Pendray, Steven A. Kalderon, Wayne A. Bonin, Jeffery Kenneth Berkowitz, Hans L. Leuthold, Song Sheng Xue, Nurul Amin, Andrew D. White, Patrick Joseph Ryan
  • Publication number: 20080174907
    Abstract: A micro-electromechanical systems (MEMS) disc drive includes high-precision and integrated components to allow for increased functionality, robustness and reduced size as compared to currently produced disc drives. Integrating multiple subcomponents of the disc drive using batch processing provides low manufacturing costs. Furthermore, using MEMS techniques, new features can be added to disc drives. For example, an environmental control component, an accelerometer and/or a thermometer may be integrated into the housing of the disc drive.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Alan B. Johnston, Roger L. Hipwell, Hans L. Leuthold, Song Sheng Xue, Nurul Amin, Andrew D. White, Patrick Joseph Ryan, Bradley J. Ver Meer, John R. Pendray, Steven A. Kalderson, Wayne A. Bonin, Jeffery Kenneth Berkowitz
  • Publication number: 20080174899
    Abstract: A device comprises a recordable disc, a substrate adjacent to the recordable disc, and an actuation mechanism fixed to the substrate. The recordable disc includes a base layer and a recordable layer on the base layer. Additional electrodes or magnetic components may be placed on the base layer to provide electromagnetic or electrostatic forces to rotate the recordable disc when acted on by the actuation mechanism. As an example, the invention may utilize MEMS techniques in order to integrate a disc and motor of a disc drive as a common component.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Roger L. Hipwell, Nurul Amin, John R. Pendray, Andrew D. White, Bradley J. Ver Meer, Hans L. Leuthold, Menachem Rafaelof, Wayne A. Bonin
  • Publication number: 20080174915
    Abstract: A device comprises a fluid bearing including a textured fluid bearing surface and a second surface and a recordable disc. The recordable disc includes a substrate, a recordable media layer on the substrate, and at least one of the textured fluid bearing surface and the second surface. The device may be manufactured using MEMS techniques. MEMS techniques provide the high precision necessary to create the textured fluid bearing surface. MEMS techniques also allow the recordable disc to be batch-fabricated with one or more additional recordable discs.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Roger L. Hipwell, Nurul Amin, John R. Pendray, Andrew D. White, Bradley J. Ver Meer, Hans L. Leuthold, Menachem Rafaelof, Wayne A. Bonin
  • Publication number: 20080174919
    Abstract: A disc drive head actuator includes a suspension structure and a slider integrated with the suspension structure. The actuator is one of at least two actuator assemblies batch-fabricated on a common substrate. The head actuator may be fabricated using mircofabrication techniques. The head actuator may have a reduced size, including package height relative to conventionally manufactured disc drives. Using mircofabrication and/or batch fabrication techniques provides reduced tolerances, which allows for increased actuation forces and/or reduced power consumption. Some embodiments include four-bar linkage actuators, which increase lateral stiffness of the actuator, allowing for a precise motion of the head relative to a media surface.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Andrew D. White, Joel D. Limmer, Roger L. Hipwell
  • Patent number: 6778350
    Abstract: A method is used for moving a transducing head between tracks of a disc in a dual-stage actuation assembly. The dual-stage actuation assembly has a main actuator for coarse positioning of the transducing head and a microactuator for fine positioning of the transducing head. The method comprises accelerating the main actuator during coarse positioning of the transducing head and applying control pulses to the microactuator during coarse positioning by the main actuator to eliminate oscillation of the microactuator during and after coarse positioning.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: August 17, 2004
    Assignee: Seagate Technology LLC
    Inventors: Wayne A. Bonin, Zine-Eddine Boutaghou, Joel Limmer, Andrew D. White
  • Patent number: 6771454
    Abstract: A method and data storage device are provided that reduce off-track motion due to resonant modes in the storage device. The off-track motion is reduced by sensing movement with a sensor located on a suspension assembly of the storage device. Based on this sensed movement, the sensor generates a signal that is used to drive a control system to minimize the off-track motion.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: August 3, 2004
    Assignee: Seagate Technology LLC
    Inventors: Andrew D. White, Joel D. Limmer, Wayne A. Bonin, Zine-Eddine Boutaghou
  • Publication number: 20020063989
    Abstract: A method and data storage device are provided that reduce off-track motion due to resonant modes in the storage device. The off-track motion is reduced by sensing movement with a sensor located on a suspension assembly of the storage device. Based on this sensed movement, the sensor generates a signal that is used to drive a control system to minimize the off-track motion.
    Type: Application
    Filed: September 4, 2001
    Publication date: May 30, 2002
    Inventors: Andrew D. White, Joel D. Limmer, Wayne A. Bonin, Zine-Eddine Boutaghou
  • Publication number: 20020041462
    Abstract: A method is used for moving a transducing head between tracks of a disc in a dual-stage actuation assembly. The dual-stage actuation assembly has a main actuator for coarse positioning of the transducing head and a microactuator for fine positioning of the transducing head. The method comprises accelerating the main actuator during coarse positioning of the transducing head and applying control pulses to the microactuator during coarse positioning by the main actuator to eliminate oscillation of the microactuator during and after coarse positioning.
    Type: Application
    Filed: June 8, 2001
    Publication date: April 11, 2002
    Inventors: Wayne A. Bonin, Zine-Eddine Boutaghou, Joel Limmer, Andrew D. White
  • Patent number: 6297247
    Abstract: Sulfonamide compounds are described which are inhibitors of matrix metalloproteinases, particularly stromelysin-1 and gelatinase A (72 kD gelatinase). Also described are methods for the treatment of multiple sclerosis, atherosclerotic plaque rupture, aortic aneurism, heart failure, restenosis, periodontal disease, corneal ulceration, burns, decubital ulcers, chronic ulcers or wounds, cancer metastasis, tumor angiogenesis, arthritis, or other autoimmune or inflammatory disorders dependent upon tissue invasion by leukocytes using the compounds.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: October 2, 2001
    Assignee: Warner-Lambert Company
    Inventors: Daniel F. Ortwine, Claude F. Purchase, Jr., Andrew D. White
  • Patent number: 6153612
    Abstract: Sulfonamide compounds are described which are inhibitors of matrix metalloproteinases, particularly stromelysin-1 and gelatinase A (72 kD gelatinase). Also described are methods for the treatment of multiple sclerosis, atherosclerotic plaque rupture, aortic aneurism, heart failure, restenosis, periodontal disease, corneal ulceration, burns, decubital ulcers, chronic ulcers or wounds, cancer metastasis, tumor angiogenesis, arthritis, or other autoimmune or inflammatory disorders dependent upon tissue invasion by leukocytes using the compounds.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: November 28, 2000
    Assignee: Warner-Lambert Company
    Inventors: Daniel F. Ortwine, Claude F. Purchase, Jr., Andrew D. White
  • Patent number: 5977141
    Abstract: Sulfonamide compounds are described which are inhibitors of matrix metalloproteinases, particularly stromelysin-1 and gelatinase A (72 kD gelatinase). Also described are methods for the treatment of multiple sclerosis, atherosclerotic plaque rupture, aortic aneurism, heart failure, restenosis, periodontal disease, corneal ulceration, burns, decubital ulcers, chronic ulcers or wounds, cancer metastasis, tumor angiogenesis, arthritis, or other autoimmune or inflammatory disorders dependent upon tissue invasion by leukocytes using the compounds.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Warner-Lambert Company
    Inventors: Daniel F. Ortwine, Claude F. Purchase, Jr., Andrew D. White
  • Patent number: 5673870
    Abstract: A reel apparatus for reeling a traveling web produced on a papermaking machine comprises a rotatable support drum which is fixedly mounted in a frame. A pair of parallel, horizontally disposed rails are mounted to the frame with the tops of the rails above the apex of the support drum. New reel spools are brought into supporting engagement on the rails at a location downstream of the apex of the support drum and intermediate the apex of the support drum and a jumbo-sized wound web roll which is being wound while being powered by a centerwind assist drive, as well as nipping engagement with the support drum. Each reel spool is supported in a pair of carriages which are mounted to travel over the rails.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: October 7, 1997
    Assignee: Beloit Technologies, Inc.
    Inventors: Andrew Fielding, Andrew D. White
  • Patent number: 5451921
    Abstract: An electrical assembly in which electrical connection is made to a device having two laminar electrodes and a laminar element between the electrodes, preferably a circuit protection device in which a PTC conductive polymer element is sandwiched between two metal foil electrodes. Connection is made to at least one of the electrodes by a resiliently deformed clip having an active arm which contacts one of the electrodes, and a passive arm which is not in conductive contact with the other electrode. Preferably there is an auxiliary member between the active and passive arms of the clip. The auxiliary member can be an insulator, or a conductive member which is spaced apart from the other electrode but secured to the same face of the PTC element as the other electrode.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: September 19, 1995
    Assignee: Raychem Corporation
    Inventors: Tracy Crawford, Jim D. Beckham, Andrew D. White
  • Patent number: 5441975
    Abstract: Pharmaceutically useful compounds having ACAT inhibitory activity of the formula ##STR1## wherein n is 0, 1, or 2, for X other than tetrazole and n=2 then R.sub.2 =R.sub.3 =H; R.sub.1 is phenyl, substituted phenyl, naphthyl, substituted naphthyl, a heteroaromatic group or a hydrocarbon group having from one to 18 carbon atoms; R.sub.2 and R.sub.3 are hydrogen, halo, hydroxy, alkyl, alkenyl, cycloalkyl, phenyl, substituted phenyl, a heteroaryl, or form a spiroalkyl group; X is a heteromonocyclic 5-membered ring containing one to four heteroatoms, said heteroatoms being nitrogen, oxygen or sulfur, and combination thereof; and R.sub.4 is a hydrocarbon group having from one to 20 carbon atoms are described as well as methods of their manufacture.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 15, 1995
    Assignee: Warner-Lambert Company
    Inventors: Helen T. Lee, Patrick M. O'Brien, Joseph A. Picard, Claude F. Purchase, Jr., Bruce D. Roth, Drago R. Sliskovic, Andrew D. White
  • Patent number: 5366987
    Abstract: Pharmaceutically useful compounds having ACAT inhibitory activity of the formula ##STR1## wherein n is 0, 1, or 2, for X other than tetrazole and n=2 then R.sub.2 =R.sub.3 =H; R.sub.1 is phenyl, substituted phenyl, naphthyl, substituted naphthyl, a heteroaromatic group or a hydrocarbon group having from one to 18 carbon atoms; R.sub.2 and R.sub.3 are hydrogen, halo, hydroxy, alkyl, alkenyl, cycloalkyl, phenyl, substituted phenyl, a heteroaryl, or form a spiroalkyl group; X is a heteromonocyclic 5-membered ring containing one to four heteroatoms, said heteroatoms being nitrogen, oxygen or sulfur, and combination thereof; and R.sub.4 is a hydrocarbon group having from one to 20 carbon atoms are described as well as methods of their manufacture.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: November 22, 1994
    Assignee: Warner-Lambert Company
    Inventors: Helen T. Lee, Patrick M. O'Brien, Joseph A. Picard, Claude F. Purchase, Jr., Bruce D. Roth, Drago R. Sliskovic, Andrew D. White
  • Patent number: 5362744
    Abstract: Novel ACAT inhibitors useful in the treatment of atherosclerosis which are tetrazole-substituted ureas,
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: November 8, 1994
    Assignee: Warner-Lambert Company
    Inventors: Claude Forsey Purchase, Jr., Andrew D. White
  • Patent number: 5185358
    Abstract: Compounds useful in treating hypercholesterolemia and atherosclerosis having the formula ##STR1## wherein X is oxygen or sulfur, Het is a monocyclic heterocyclic group having three hetero atoms selected from nitrogen, oxygen and sulfur, and R.sub.1, R.sub.2 and R.sub.3 are hydrogen, flourine, chlorine, bromine, a straight or branched alkyl group having from 1 to 6 carbon atoms, a straight or branched alkoxy group having from 1 to 6 carbon atoms, substituted or unsubstituted benzoyl, substituted or unsubstituted benzoyl, substituted or unsubstituted phenyl, amino or substituted amino or a carboxy group.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: February 9, 1993
    Assignee: Warner-Lambert Co.
    Inventors: Mark W. Creswell, Andrew D. White
  • Patent number: 5162360
    Abstract: The present invention provides N-substituted aryl-N'-heterocyclic substituted ureas and thioureas of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen, fluorine, chlorine, bromine, alkyl, alkoxy, substituted or unsubstituted benzoyl, substituted or unsubstituted phenyl, amino, substituted amino, or a monocyclic heterocyclic, or a carboxy group; and Het is a substituted monocyclic heterocyclic group containing two hetero atoms selected from nitrogen, oxygen or sulfur; which are useful in treating hypercholesterolemia and atherosclerosis.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: November 10, 1992
    Assignee: Warner-Lambert Company
    Inventors: Mark W. Creswell, Andrew D. White