Patents by Inventor Arshad A. Alfoqaha

Arshad A. Alfoqaha 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: 8135479
    Abstract: A sensor assembly, which may be incorporated by a medical electrical lead, includes an insulative body, formed from a biocompatible plastic, and a sensor mounted on a mounting surface of the insulative body. The mounting surface extends distally from a proximal portion of the insulative body in which first and second conductive inserts extend, being spaced apart and isolated from one another. The sensor is coupled to each of the first and second conductive inserts, and the first conductive insert includes a conductor-coupling end extending proximally from the proximal portion of the insulative body. The sensor assembly may further include an electrode extending around the sensor and the insulative body, wherein the electrode includes an aperture approximately aligned with an active surface of the sensor to expose the active surface. A mounting platform assembly for the sensor assembly may include the conductive inserts and the insulative body.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: March 13, 2012
    Assignee: Medtronic, Inc.
    Inventors: Arshad A. Alfoqaha, Kris A. Peterson
  • Publication number: 20120004526
    Abstract: A sensor assembly, which may be incorporated by a medical electrical lead, includes an insulative body, formed from a biocompatible plastic, and a sensor mounted on a mounting surface of the insulative body. The mounting surface extends distally from a proximal portion of the insulative body in which first and second conductive inserts extend, being spaced apart and isolated from one another. The sensor is coupled to each of the first and second conductive inserts, and the first conductive insert includes a conductor-coupling end extending proximally from the proximal portion of the insulative body. The sensor assembly may further include an electrode extending around the sensor and the insulative body, wherein the electrode includes an aperture approximately aligned with an active surface of the sensor to expose the active surface. A mounting platform assembly for the sensor assembly may include the conductive inserts and the insulative body.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 5, 2012
    Applicant: Medtronic, Inc.
    Inventor: Arshad A. Alfoqaha
  • Publication number: 20110028852
    Abstract: An implantable pressure sensor having improved bend error performance is provided having a capsule housing a pressure sensing device, wherein the capsule includes an opening that allows the pressure sensing device to obtain pressure measurements from an environment surrounding the capsule. A rigid bridge is attached to the capsule so as to extend across the opening of the capsule. The bridge includes at least one opening that exposes the pressure sensing device to the surrounding environment. The rigidity of the bridge functions to prevent deformations from bending forces that are exerted on the sensor and also functions to divert loads from such bending forces away from the pressure sensing device to instead travel through the bridge, which in turn resists deformation. A fill material may be situated between the bridge and capsule so as to prevent bodily fluid or tissue from building up in the sensor under the bridge.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Inventor: Arshad A. Alfoqaha
  • Patent number: 7706106
    Abstract: Shock performance and stiffness of hard disk drive lifters are enhanced by extending one or more portions of a load beam in a dimension normal to the load beam plane. A load beam in a high shock suspension system comprises a planar body having transverse members extending between longitudinal rails. One embodiment comprises a lifter integral to the load beam, extending distally, and comprising a rib having a conic cross section and a lifting tab having upward curving edges. Another embodiment comprises rails having edges bending upward at 90 degrees, separated by a first width at a proximal end of the body, and tapering to a second width at a distal end of the body. A narrow lifter having upward curving edges is displaced between the rails, and extends distally from the body. Stiffeners extend from the rails and connect to an intermediate point on the lifter.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 27, 2010
    Assignee: Magnecomp Corporation
    Inventors: Shijin Mei, Peter Hahn, Arshad Alfoqaha
  • Publication number: 20090270707
    Abstract: A sensor assembly, which may be incorporated by a medical electrical lead, includes an insulative body, formed from a biocompatible plastic, and a sensor mounted on a mounting surface of the insulative body. The mounting surface extends distally from a proximal portion of the insulative body in which first and second conductive inserts extend, being spaced apart and isolated from one another. The sensor is coupled to each of the first and second conductive inserts, and the first conductive insert includes a conductor-coupling end extending proximally from the proximal portion of the insulative body. The sensor assembly may further include an electrode extending around the sensor and the insulative body, wherein the electrode includes an aperture approximately aligned with an active surface of the sensor to expose the active surface. A mounting platform assembly for the sensor assembly may include the conductive inserts and the insulative body.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 29, 2009
    Inventors: Arshad A. Alfoqaha, Kris A. Peterson
  • Patent number: 7298589
    Abstract: Techniques for reducing weight while maintaining sufficient stiffness of a suspension assembly in provided. The suspension assembly includes a surface having a proximal end and distal end. A length is defined between the proximal end and the distal end. At least one support member (such as an edge rail) is formed to provide stiffness. The support member is contoured. In a specific embodiment, a portion of at least one cutout is disposed in at least one support member, and extends from the horizontal portion of the load beam member vertically into the at least one support member.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: November 20, 2007
    Assignee: Magnecomp Corporation
    Inventors: Martin John McCaslin, Arshad Alfoqaha
  • Patent number: 7199974
    Abstract: A write element for use in a read/write head having an air bearing surface, so as to reduce pole tip protrusion. The write element includes a pole tip region; an insulation layer formed adjacent to the pole tip region; a coil embedded in the insulation layer which contributes to a protrusion force that generates a pole tip protrusion; and a layer of thermally expansive material formed over the insulation layer, and recessed from the air bearing surface, that expands in response to heat absorption, causing a rotational moment of force that counteracts the protrusion force thus reducing the pole tip protrusion.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: April 3, 2007
    Assignee: Western Digital (Fremont), Inc.
    Inventor: Arshad A. Alfoqaha
  • Publication number: 20050117256
    Abstract: Techniques for reducing weight while maintaining sufficient stiffness of a suspension assembly in provided. The suspension assembly includes a surface having a proximal end and distal end. A length is defined between the proximal end and the distal end. At least one support member (such as an edge rail) is formed to provide stiffness. The support member is contoured. In a specific embodiment, a portion of at least one cutout is disposed in at least one support member, and extends from the horizontal portion of the load beam member vertically into the at least one support member.
    Type: Application
    Filed: October 7, 2004
    Publication date: June 2, 2005
    Applicant: KR Precision Public Company Limited
    Inventors: Martin McCaslin, Arshad Alfoqaha
  • Patent number: 6894871
    Abstract: A technique for reducing pole tip protrusion (“PTP”) in a magnetic write head and giant magnetoresistive (“GMR”) stripe temperature in an associated read head structure utilizing one or more internal diffuser regions. In a representative embodiment disclosed, this may be effectuated through the appropriate placement of a relatively highly conductive material diffuser region (e.g. gold (Au) or copper (Cu)) above the poles, between the first pole and the coil and/or through the first pole, second and first shields and undercoat layer to the substrate in order to conduct heat away from the write head poles, insulating layers (e.g. photoresist) and shields.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: May 17, 2005
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Arshad Alfoqaha, Edmund Fanslau
  • Patent number: 6751055
    Abstract: An inductive transducer has inorganic nonferromagnetic material disposed in an apex region adjacent to a submicron nonferromagnetic gap in a magnetic core. The inorganic nonferromagnetic material has a much lower coefficient of thermal expansion than that of hardbaked photoresist, reducing pole tip protrusion even if other insulation surrounding the coil sections within the core is made of hardbaked photoresist. Alternatively, the entire insulation surrounding the coil sections within the core, in addition to the apex region, can be formed of inorganic nonferromagnetic material, further reducing pole tip protrusion. The transducer has SiO2 rather than alumina in an undercoat layer joining the wafer substrate and the thin film layers of the transducer. SiO2 may also replace alumina in other areas, such as a piggyback layer joining the inductive transducer with a magnetoresistive transducer.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: June 15, 2004
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Arshad Alfoqaha, Mohamad T. Krounbi, Sandrawattie Sankar, David J. Seagle, Kenneth R. Young
  • Publication number: 20040027717
    Abstract: A technique for reducing pole tip protrusion (“PTP”) in a magnetic write head and giant magnetoresistive (“GMR”) stripe temperature in an associated read head structure utilizing one or more internal diffuser regions. In a representative embodiment disclosed, this may be effectuated through the appropriate placement of a relatively highly conductive material diffuser region (e.g. gold (Au) or copper (Cu)) above the poles, between the first pole and the coil and/or through the first pole, second and first shields and undercoat layer to the substrate in order to conduct heat away from the write head poles, insulating layers (e.g. photoresist) and shields.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 12, 2004
    Inventors: Arshad Alfoqaha, Edmund Bruno Fanslau