Patents by Inventor Tarek A. Ahmed

Tarek A. Ahmed 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: 20240134447
    Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: Mohamed Tarek Ahmed El-Haddad, Babak Amirsolaimani, Francesco Larocca, Yang Yang, Junjie Hu
  • Publication number: 20240133017
    Abstract: A method for coating a substrate with a Co-Pi modified BiVO4/WO3 heterostructure film includes direct current reactive sputtering tungsten (W) onto a substrate in a gaseous mixture containing oxygen to form a tungsten trioxide (WO3) film, direct current reactive sputtering bismuth (Bi) onto the tungsten trioxide (WO3) film in a gaseous mixture containing oxygen to form a dibismuth trioxide (Bi2O3) film, drop-casting a vanadyl acetylacetonate solution onto the Bi2O3 film and heating at a temperature of at least 450° C. in ambient air to convert the Bi2O3 film to a BiVO4 film, and photoelectrochemically coating the BiVO4 film with a cobalt-phosphate (Co-Pi) to form a modified film on the surface of the substrate. A photoanode containing the Co-Pi modified BiVO4/WO3 heterostructure film prepared by the method, and its application in water splitting.
    Type: Application
    Filed: October 23, 2022
    Publication date: April 25, 2024
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Amar Kamal Mohmeadkhair SALIH, Qasem Ahmed Qasem DRMOSH, Tarek KANDIEL, Zain Hassan YAMANI
  • Publication number: 20240136003
    Abstract: A storage device charges bitlines in preparation for a program pulse. To charge the bitlines, the storage device connects the bitlines to an external regulator instead of an internal regulator to prepare them for the program pulse. The system can charge all bitlines to the external regulator high voltage reference before changing to the internal regulator for bitline stabilization before the program pulse.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 25, 2024
    Inventors: Tarek Ahmed AMEEN BESHARI, Shantanu R. RAJWADE, Ahsanur RAHMAN, Sagar UPADHYAY, Pratyush CHANDRAPATI
  • Publication number: 20240136002
    Abstract: Program verify can be performed simultaneously on multiple subblocks in a storage device. The program verify occurs after a program operation of the storage cells. The program verify can include application of a verify read pulse to multiple subblocks simultaneously and then a count a number of bitlines of the multiple subblocks that do not discharge in response to the verify read pulse. The program verify passes if the count is within an expected range, instead of requiring all storage cells to pass program verify before moving on. If the number of bitlines not discharging is outside the expected range, the system can perform a second program pass.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 25, 2024
    Inventors: Tarek Ahmed AMEEN BESHARI, Shantanu R. RAJWADE, Violante MOSCHIANO, Ali KHAKIFIROOZ, Sagar UPADHYAY, Giuseppina PUZZILLI, Kartik GANAPATHI
  • Publication number: 20240118241
    Abstract: A remote field eddy current, RFEC, system for detecting an azimuth location of a defect in a pipe includes a holder extending along a longitudinal axis X and shaped to flow through the pipe, a magnetic field generator located within the holder and configured to generate a first magnetic field B0, a 3-axis fluxgate magnetometer located within the holder, at a given distance away from the transmitter, along the longitudinal axis X, wherein the fluxgate magnetometer is configured to measure a second magnetic field B, which is a result of the first magnetic field B0 interacting with the defect in the pipe, and a controller located within the holder and configured to receive a value of the second magnetic field B and to determine an azimuth of the defect in the pipe by interpreting radial components of the measured field, and an extent of the defect based on the second magnetic field B.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Shehab AHMED, Hakan BAGCI, Moutazbellah A. KHATER, Mohamed LARBI ZEGHLACHE, Tarek Mahmoud Atia MOSTAFA, Guang An OOI, Mehmet Burak OZAKIN
  • Publication number: 20240071532
    Abstract: Methods and apparatus for fast and efficient verify recovery and array discharge for 3D NAND memory arrays and other 3D storage devices. The 3D storage device includes storage arrays including strings of memory cells stacked on top of one another and sharing a channel in a pillar for the string. The memory cells for a string occupy respective tiers in a 3D structure with each tier having an associated wordline. A controller is used to program charge levels in the memory cells. Programming is followed by a fast verify recovery where a voltage is applied to the wordlines to perform a program verify, followed by discharging wordlines. Erased wordlines are identified and discharged first, followed by programmed wordlines, which may employ staggered discharge sequences. Dummy wordlines are then discharged, with an optional timer delay. For multi-deck devices, wordlines in the deck with an active wordline are discharged before wordlines in one or more other decks.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Tarek Ahmed AMEEN BESHARI, Sagar UPADHYAY, Shantanu R. RAJWADE, Rohit S. SHENOY, Golnaz KARBASIAN
  • Publication number: 20240061170
    Abstract: There is provided a photonic integrated circuit configured for low-coherence interferometry and in-field sensing. The photonic integrated circuit can include an opto-coupler that has a substrate substantially transparent to a specified wavelength of light and a waveguide configured to route a light beam having a center wavelength at the specified wavelength. The opto-coupler further includes a mirror disposed at an angle, and the mirror is disposed on an angled surface of the substrate, the angled surface being proximate to an output end of the waveguide. The opto-coupler further includes a beam forming element configured to collect light reflected from the mirror, and the waveguide and the mirror are integrated within the substrate.
    Type: Application
    Filed: April 8, 2022
    Publication date: February 22, 2024
    Applicant: Meta Platforms Technologies, LLC
    Inventors: Guohua Wei, Mohamed Tarek Ahmed El-Haddad, Marc Aurèle Gilles, Robin Sharma, Ruobing Qian
  • Patent number: 11892638
    Abstract: A near-eye imaging system includes a light source, a waveguide, a scanner, and a sensor. The light source is configured to emit light. The waveguide includes an output coupler. The scanner is configured to direct the light to the output coupler at varying scan angles. The waveguide confines the light to guide the light to the output coupler. The output coupler has negative optical power and is configured to direct the light to exit the waveguide as expanding illumination light toward an eyebox region. The sensor is configured to generate a tracking signal in response to returning light incident on the sensor via the scanner and via the output coupler.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: February 6, 2024
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Mohamed Tarek Ahmed El-Haddad, Yang Yang, Francesco Larocca, Robin Sharma
  • Patent number: 11890380
    Abstract: A buccal tablet formulation has a polyvinylpyrrolidone K-90 as a solid dispersion polymer, a hydroxypropyl methylcellulose as a mucoadhesive polymer, a sodium deoxycholate as mucopenetration enhancer, a porous silicon dioxide (e.g., FujiSil), mannitol, and avanafil. The ratio of PVP K-90 to AVA is approximately 2:1 (e.g., 2.3:1 to 1.7:1) in the tablet. Methods of making the buccal tablet with enhanced bioavailability and prolonged duration and methods of using the formulation for the treatment of erectile dysfunction are also provided.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: February 6, 2024
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Omar D. Al-hejaili, Khalid M. El-Say, Tarek A. Ahmed, Hossam S. El-Sawy, Fathy I. Abd-Allah
  • Publication number: 20240013839
    Abstract: NAND performance is increased by reducing the time to perform program operations. An operation to program a portion of NAND cells in a NAND memory array includes multiple stages. NAND performance is increased by reducing the time in a first stage of the multiple stages to compute parameters that are used in a second stage to perform program operation(s) and verify operation(s). The time in the first stage is reduced by enabling dynamic prologue selection to dynamically select one of multiple sets of first stage operations to be performed in the first stage for a program operation based on the Word Line (WL), WL-Group, and block information for a current program operation and a previous program operation.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: Sagar UPADHYAY, Aliasgar S. MADRASWALA, Bhavya LOKASANI, Pratyush CHANDRAPATI, Tarek Ahmed AMEEN BESHARI
  • Patent number: 11851447
    Abstract: The invention provides a compound of formula (Ia) or (Ib): or a salt thereof, wherein A, B, C, D, E, F, J, K, L, M, Q, V, X, Y, W and Z have any of the values described in the specification, as well as compositions comprising a compound of formula (Ia) or (Ib) or a salt thereof, and methods of use thereof.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: December 26, 2023
    Assignee: UNIVERSITY OF IOWA RESEARCH FOUNDATION
    Inventors: Christopher Pigge, Moustafa Tarek Ahmed Ibrahim Gabr
  • Publication number: 20230393400
    Abstract: A near-eye imaging system includes a light source, a waveguide, a scanner, and a sensor. The light source is configured to emit light. The waveguide includes an output coupler. The scanner is configured to direct the light to the output coupler at varying scan angles. The waveguide confines the light to guide the light to the output coupler. The output coupler has negative optical power and is configured to direct the light to exit the waveguide as expanding illumination light toward an eyebox region. The sensor is configured to generate a tracking signal in response to returning light incident on the sensor via the scanner and via the output coupler.
    Type: Application
    Filed: June 3, 2022
    Publication date: December 7, 2023
    Inventors: Mohamed Tarek Ahmed El-Haddad, Yang Yang, Francesco Larocca, Robin Sharma
  • Patent number: 11648205
    Abstract: A buccal tablet formulation has a polyvinylpyrrolidone K-90 as a solid dispersion polymer, a hydroxypropyl methylcellulose as a mucoadhesive polymer, a sodium deoxycholate as mucopenetration enhancer, a porous silicon dioxide (e.g., FujiSil), mannitol, and avanafil. The ratio of PVP K-90 to AVA is approximately 2:1 (e.g., 2.3:1 to 1.7:1) in the tablet. Methods of making the buccal tablet with enhanced bioavailability and prolonged duration and methods of using the formulation for the treatment of erectile dysfunction are also provided.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: May 16, 2023
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Omar D. Al-hejaili, Khalid M. El-Say, Tarek A. Ahmed, Hossam S. El-Sawy, Fathy I. Abd-Allah
  • Publication number: 20220366991
    Abstract: An apparatus is described. An apparatus includes controller logic circuitry to perform a program-verify programming process to a flash memory chip. The program-verify programming process is to reduce a size of a pre-program verify (PPV) bucket in response to a number of cells being fully programmed to a same digital state. The number of cells are less than a total number of cells to be programmed to the same digital state.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Shantanu R. RAJWADE, Tarek Ahmed AMEEN BESHARI, Matin AMANI, Narayanan RAMANAN, Arun THATHACHARY
  • Publication number: 20220310160
    Abstract: Systems, apparatuses and methods may provide for technology that boosts strings of a plurality of NAND sub-blocks to a pass voltage, deboosts a first subset of the boosted strings based on data associated with the plurality of NAND sub-blocks, and simultaneously programs the first subset while a second subset of the boosted strings remain at the pass voltage. In one example, to boost the strings of the NAND sub-blocks, the technology applies the pass voltage to selected and unselected wordlines that are connected to the NAND sub-blocks while selected and unselected strings are disconnected from a bitline that receives the data associated with the NAND sub-blocks.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Inventors: Ali Khakifirooz, Pranav Kalavade, Shantanu Rajwade, Tarek Ahmed Ameen Beshari
  • Publication number: 20220280425
    Abstract: Methoxylated flavonoids are described for their compositions and uses in hypertension treatment as vasodilators. The flavonoids are intravenously administered in a self-nanoemulsifying drug delivery system (SNEDDS) in combination with linoleic acid which provides lowering heart rate, thus suppressing reflex tachycardia elicited by the vasodilating effect of flavonoids. The compositions are used to treat or prevent acute hypertension or any acute symptoms of emergency hypertension.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 8, 2022
    Inventors: Hossam M. Abdallah, Hany Mohamed El-Bassossy, Ali M. El-Halawany, Tarek A. Ahmed, Gamal A. Mohamed, Azizah M. Malebari, Noura Ahmed Hassan
  • Publication number: 20220208286
    Abstract: For a nonvolatile (NV) storage media such as NAND media that is written by a program and program verify operation, the system can determine an expected number of SSPC (selective slow programming convergence) cells for a page of cells for specific conditions of the page. The system can perform program verify with a first wordline (WL) select voltage for SSPC cell detection for a first write of the page to detect the expected number of SSPC cells. Based on the determined expected number of SSPC cells, the system can set a boost voltage to capture an expected number of SSPC cells during the program verify operation. The system performs program verify for subsequent writes to the page with a higher WL select voltage, to perform program verify for standard cells and then SSPC program verify with the boost voltage determined from the first write.
    Type: Application
    Filed: December 24, 2020
    Publication date: June 30, 2022
    Inventors: Tarek Ahmed AMEEN BESHARI, Shantanu R. RAJWADE, Matin AMANI, Narayanan RAMANAN
  • Publication number: 20220201403
    Abstract: An audio system including an optical microphone and an audio controller. The optical microphone includes a light source and a detector. In some embodiments, the light source illuminates skin of a user. Alternatively the optical microphone also includes a membrane, and the light source illuminates a portion of the membrane. Sounds from a local area cause vibrations in the skin (or vibrations in the membrane). The detector may be in an interferometric configuration or a non-interferometric configuration with the light source. The audio controller monitors the vibrations of the skin (or membrane) using signal output from the detector, and measures the sounds using the monitored vibrations.
    Type: Application
    Filed: November 12, 2021
    Publication date: June 23, 2022
    Inventors: Morteza Khaleghimeybodi, Antonio John Miller, Liliana Ruiz Diaz, Andrew John Ouderkirk, Maik Andre Scheller, Robin Sharma, Mohamed Tarek Ahmed El-Haddad, Guohua Wei, Gizem Tabak
  • Patent number: 11298321
    Abstract: Provided are a self-nanoemulsifying 3D printer ink composition and a method of using such composition to manufacture a 3D-printed tablet having compartmentalized active pharmaceutical ingredients. In particular, the 3D-printed tablet composition includes glimepiride and/or rosuvastatin in a curcuma oil based self-nanoemulsifying drug delivery system (SNEDDS). The disclosure also provides a method of treating a metabolic disorder or disease by administering a therapeutically effective amount of the 3D-printed tablet to a subject in need thereof.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: April 12, 2022
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Khalid M. El-Say, Tarek A Ahmed, Raed I. Felimban, Hossam H. Tayeb, Waleed Y Rizg, Fuad H. AlNadwi, Abdelsattar M. Omar
  • Patent number: 11285148
    Abstract: An ophthalmic formulation comprising transethosomes is provided. The transethosomes include a phospholipid, an edge activator, ethanol, and ketoconazole, wherein a surface of the transethosome is modified with a cationic charge inducing agent. The transethosomes may be incorporated into in situ gelling or hydrogel compositions. The formulations are useful for the sustained delivery of ketoconazole to the posterior eye segment of a subject.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: March 29, 2022
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Tarek A. Ahmed, Maram M. Alzahrani, Nabil A. Alhakamy, Raed I. Felimban