Patents by Inventor A. Sharkawy
A. Sharkawy 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: 20240256264Abstract: A system is provided for use with over-the-air (OTA) analytic data corresponding to OTA aggregate data associated with an OTA push of a software update to a plurality of devices. The system includes: a data receiver configured to receive the OTA aggregate data; a memory having instructions stored therein; and a processor configured to execute the instructions stored in the memory to cause the system to: store the received OTA aggregate data into the memory; analyze the OTA aggregate data to determine an optimized time period for the OTA push; predict a future OTA push time period based on the optimized time period; and generate a future OTA push instruction based on the predicted future OTA push time period.Type: ApplicationFiled: January 27, 2023Publication date: August 1, 2024Applicants: Toyota Motor North America, Inc., Toyota Jidosha Kabushiki KaishaInventors: Sergei Gage, Yusra El-Sharkawy, Jiju Thomas
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Publication number: 20240186014Abstract: Systems, methods, computer program products, and computer readable media for predicting brain biomarker status are described. Techniques are described for receiving response data comprising a plurality of inputs by a subject and at least one input characteristic associated with the plurality of inputs, receiving characteristic data comprising a parameter indicative of a characteristic associated with the subject, processing the response data and the characteristic data, comparing the processed response data to reference response data or to model reference data, comparing the processed characteristic data to corresponding reference characteristic data or to model characteristic data, and determining a status of at least one biomarker of a brain disorder in the brain of the subject based on the comparisons.Type: ApplicationFiled: March 30, 2022Publication date: June 6, 2024Inventors: Seyed-Mahdi KHALIGH-RAZAVI, Chris KALAFATIS, Mohammad Hadi MODARRES, Jonathan EL-SHARKAWY, Sina HABIBI
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Publication number: 20200315168Abstract: Fragrant and antimicrobial properties were conferred to cotton fabrics following microencapsulation using green materials. Limonene and vanillin microcapsules were produced by complex coacervation using chitosan/gum Arabic as shell materials and tannic acid as hardening agent. The effect of two emulsifiers; Span 85 and polyglycerol polyricinoleate (PGPR), on the encapsulation efficiency (EE %), microcapsule's size and morphology, and cumulative release profiles was studied. The use of Span 85 resulted in mononuclear morphology while PGPR gave rise to polynuclear structures, regardless of the core material (vanillin or limonene). The obtained microcapsules demonstrated a sustained release patter. Grafting of the produced microcapsules onto cotton fabrics through an esterification reaction using citric acid as anon-toxic cross-linker followed by thermofixation and curing, was confirmed by SEM and FTIR spectroscopy.Type: ApplicationFiled: March 26, 2018Publication date: October 8, 2020Inventors: Asma Mohamad Abdallah Sharkawy, tamer Shoeib, Alirio Egidio Rodrigues, Maria Filomena Filipe Barreiro, Isabel Patrícia Martins Fernandes
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Publication number: 20180074385Abstract: An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.Type: ApplicationFiled: November 12, 2017Publication date: March 15, 2018Inventors: AHMED SHARKAWY, DENNIS W. PRATHER, MATHEW JOSEPH ZABLOCKI
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Patent number: 9817296Abstract: An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.Type: GrantFiled: September 29, 2016Date of Patent: November 14, 2017Assignee: LUMILANT, INC.Inventors: Ahmed Sharkawy, Dennis W. Prather, Mathew Joseph Zablocki
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Patent number: 9791489Abstract: A device with at least one channel for measuring high dynamic range, radio frequency (RF) power levels over broad-ranging duty cycles includes a power sensor circuit comprising at least one logarithmic amplifier; at least one directional RF coupler electrically connected to the at least one power sensor; at least one RF attenuator electrically connected to the at least one RF coupler; and at least one sampling circuit electrically connected to the at least one RF attenuator and the at least one RF coupler. The at least one sampling circuit performs analog-to-digital conversion of electrical signals received to provide digitals signals for measuring the RF power level in the at least one channel.Type: GrantFiled: March 22, 2012Date of Patent: October 17, 2017Assignee: THE JOHNS HOPKINS UNIVERSITYInventors: Paul A. Bottomley, William Edelstein, Abdel-Monem M. El-Sharkawy, Di Qian
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Publication number: 20170082908Abstract: An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.Type: ApplicationFiled: September 29, 2016Publication date: March 23, 2017Inventors: AHMED SHARKAWY, DENNIS W. PRATHER, MATHEW JOSEPH ZABLOCKI
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Patent number: 9494668Abstract: A system for measuring nuclear magnetic resonance spin-lattice relaxation time T1 and spin-spin relaxation time T2 of a sample includes a source of a substantially uniform magnetic field B0 for immersing at least a portion of the sample; a nuclear magnetic resonance excitation and detection system constructed and arranged to excite at least a portion of the sample with a plurality of nuclear magnetic resonance pulse sequences, each applied with a repetition time that is preselected to be sensitive to a T1 value of at least a portion of the sample, and to detect nuclear magnetic resonance emissions from the sample in response to excitations to provide a plurality of detection signals; and a signal processing system configured to communicate with the nuclear magnetic resonance excitation and detection system to receive the plurality of detection signals.Type: GrantFiled: December 3, 2012Date of Patent: November 15, 2016Assignee: THE JOHNS HOPKINS UNIVERSITYInventors: Paul A. Bottomley, Guan Wang, Abdel-Monem M. El-Sharkawy
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Patent number: 9459404Abstract: An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.Type: GrantFiled: March 4, 2011Date of Patent: October 4, 2016Assignee: LUMILANT, INC.Inventors: Ahmed Sharkawy, Dennis W. Prather, Mathew Joseph Zablocki
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Publication number: 20140015547Abstract: A device with at least one channel for measuring high dynamic range, radio frequency (RF) power levels over broad-ranging duty cycles includes a power sensor circuit comprising at least one logarithmic amplifier; at least one directional RF coupler electrically connected to the at least one power sensor; at least one RF attenuator electrically connected to the at least one RF coupler; and at least one sampling circuit electrically connected to the at least one RF attenuator and the at least one RF coupler. The at least one sampling circuit performs analog-to-digital conversion of electrical signals received to provide digitals signals for measuring the RF power level in the at least one channel.Type: ApplicationFiled: March 22, 2012Publication date: January 16, 2014Applicant: The Johns Hopkins UniversityInventors: Paul A. Bottomley, William Edelstein, Abdel-Monem M. El-Sharkawy, Di Qian
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Patent number: 8555891Abstract: Techniques for operating a subcutaneous implant device are disclosed. The implant device can be formed of a non-magnetic material that is compatible with diagnostics such as magnetic resonance imaging (MRI) and can include a rotor element that rotates under the influence of an external magnetic field. The implant device includes a tension relief mechanism for relieving excessive force applied between the implant device and a portion of a patient's tongue. A non-implanted device can include a stator and drive circuitry for generating the external magnetic field. The non-implanted device can receive a user command and can vary the external magnetic field based on the command. When activated by the magnetic field, the implant device can change its operating state to interact with the patient's body.Type: GrantFiled: May 21, 2010Date of Patent: October 15, 2013Assignee: Medtronic Xomed, Inc.Inventors: Adam Sharkawy, Koray Sahin, Adrian McVicker, Jon F. Moss, Casidy Domingo, Nikhil D. Bhat, Christopher Bagley, Anant V. Hegde, John M. Farbarik, George Y. Choi, Kasey Kai-Chi Li
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Patent number: 8518062Abstract: An anastomosis device has first and second components which each having first and second parts. The first and second components are magnetically attracted to one another. The device forms a throughhole when in use. The first parts of the first and second components are positioned radially outward from the second parts relative to the longitudinal axis with the first parts of the first and second components contacting one another and being magnetically attracted to one another. The second parts of the first and second components also being magnetically attracted to one another and are separated by the vessel walls.Type: GrantFiled: November 18, 2002Date of Patent: August 27, 2013Assignee: Medtronic, Inc.Inventors: David H. Cole, Darin C. Gittings, Stephen L. Olson, Dean F. Carson, Michael L. Reo, Keke Lepulu, A. Adam Sharkawy
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Patent number: 8512360Abstract: Methods and devices for placing a target vessel in fluid communication with a source of blood and a target vessel. A conduit includes first portion adapted to be placed in fluid communication with a source of blood, such as a heart chamber, and a second portion adapted to be placed in fluid communication with a target vessel having a lumen, such as coronary artery. The first and second conduit portions are transverse to each other such that the conduit is generally T-shaped. The conduit lies on an exterior of the heart between the blood source and the target vessel and is configured to deliver blood in multiple directions into the lumen of the target vessel. For example, in an occluded coronary artery, blood flows both toward and away from the occlusion. The conduit may be flexible, rigid, collapsible or non-collapsible, and may be formed of synthetic vascular graft material, tissue, or a combination of the two.Type: GrantFiled: February 13, 2004Date of Patent: August 20, 2013Assignee: Medtronic, Inc.Inventors: A. Adam Sharkawy, Dean F. Carson, Darin C. Gittings, Keke J. Lepulu, Mark J. Foley, Wally S. Buch, Alan R. Rapacki
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Patent number: 8338268Abstract: A transfer process for silicon nanomembranes (SiNM) may involve treating a recipient substrate with a polymer structural support. After treating the recipient substrate, a substrate containing the intended transferable devices may be brought in direct contact with the aforementioned polymer layer. The two substrates may then go through a Deep Reactive Ion Etch (DRIE) to remove at least a portion of the substrate containing the devices. Oxide may be selectively removed with a buffered oxide wet etch, leaving the transferred SiNM on the recipient substrate with the Underlying polymer layer.Type: GrantFiled: March 17, 2011Date of Patent: December 25, 2012Assignee: Lumilant, Inc.Inventors: Mathew Joseph Zablocki, Ahmed Sharkawy, Dennis W. Prather
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Publication number: 20120313643Abstract: Disclosed herein is a magnetic resonance imaging (MRI) device noise dampening system, including an adjustable vibration dampening suspension system arranged between a gradient winding assembly of the MRI device and a support structure supported by a primary magnet assembly of an MRI device, wherein the adjustable vibration dampening suspension system comprises: a plurality of separately inflatable support elements; a vibration reducing material coupled to at least one of a plurality of connecting elements associated with a gradient winding assembly of an MRI device; and/or an acoustic noise absorbing material at least partially filling a space containing a gradient winding assembly of an MRI device.Type: ApplicationFiled: June 13, 2012Publication date: December 13, 2012Inventors: William A. Edelstein, AbdEl-Monem El-Sharkawy
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Publication number: 20120257851Abstract: An optical logic gate may be composed of a host material having air holes disposed therein and having parallel optical waveguides formed therein.Type: ApplicationFiled: March 6, 2012Publication date: October 11, 2012Applicant: Lumilant, Inc.Inventors: Ahmed Sharkawy, Mathew J. Zablocki, Dennis W. Prather
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Publication number: 20110305456Abstract: An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.Type: ApplicationFiled: March 4, 2011Publication date: December 15, 2011Inventors: Ahmed Sharkawy, Dennis W. Prather, Mathew Joseph Zablocki
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Publication number: 20110230035Abstract: A transfer process for silicon nanomembranes (SiNM) may involve treating a recipient substrate with a polymer structural support. After treating the recipient substrate, a substrate containing the intended transferable devices may be brought in direct contact with the aforementioned polymer layer. The two substrates may then go through a Deep Reactive Ion Etch (DRIE) to remove at least a portion of the substrate containing the devices. Oxide may be selectively removed with a buffered oxide wet etch, leaving the transferred SiNM on the recipient substrate with the Underlying polymer layer.Type: ApplicationFiled: March 17, 2011Publication date: September 22, 2011Applicant: LUMILANT, INC.Inventors: Mathew J. Zablocki, Ahmed Sharkawy, Dennis W. Prather
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Publication number: 20110196187Abstract: Apparatuses for delivering compositions of matter comprising a magnetically sensitive drug carrier and a related drug and methods for causing the drug carriers to localize within the patient using an internal or external magnetic field are described.Type: ApplicationFiled: February 11, 2010Publication date: August 11, 2011Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Florian Niklas Ludwig, Syed Faiyaz Ahmed Hossainy, Bjorn Svensson, Adam Sharkawy, Michael J. Cima, Omid C. Farokhzad, Jesus Magana, Randolf Von Oepen, Mina Chow, William E. Webler, JR., Travis R. Yribarren, Kevin J. Ehrenreich
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Patent number: PP34483Abstract: A new and distinct cultivars of grapevine, Vitis spp., which is an early to midseason ripening white wine grapevine that is resistant to Pierce's disease, exhibits low fruit ripening rot, and is able to produce premium white wines. The new and distinct cultivar produces a premium white wine with a pale yellow color and consistent yield. The cultivar has moderate-vigorous vine growth with moderate fruit yield. The cultivar produces wines with pale yellow color, smooth mouthfeel, and a harmonious blend of tropical fruit taste with a long and generous clear finish. The cultivar has inflorescences that develop generally from the 4th to 6th nodes of a shoot.Type: GrantFiled: September 20, 2021Date of Patent: August 9, 2022Assignee: Florida A&M UniversityInventors: Zhongbo Ren, Violeta Tsolova, Islam El-Sharkawy, Allen Frank Humphries, Jiang Lu