Patents Assigned to King Abdulaziz City Science and Technology
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Patent number: 10576448Abstract: Disclosed is a device for automated synthesis of homogenous slurry of metal nanoparticles operating under redox controlled conditions by wet chemical reaction method. Device comprises a three-layer reactor unit, multi-feed covering unit, an electric stirring unit system and ground fixing foundation unit.Type: GrantFiled: June 28, 2017Date of Patent: March 3, 2020Assignee: THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)Inventors: Mohammed Ahmad S Alshamsi, Sulaiman Mohammed Alfadul, Ahmad S Alshamari
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Publication number: 20200047114Abstract: A membrane including a polymer substrate having pore channels and a metal-organic framework disposed on the polymer substrate. Methods of producing the membrane are described. Methods of separating gases using the membrane are also provided.Type: ApplicationFiled: August 9, 2018Publication date: February 13, 2020Applicants: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and TechnologyInventors: Bassem AL-MAYTHALONY, Muhammad Usman
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Patent number: 10557020Abstract: Polymer composites are provided, and more particularly, polymer composites of ground date pits disposed in a polymer matrix. The composites can be formed by a process of preparing reinforced polymer composites having a fibril melt fracture surface, including blending a mixture of date pit particulate with a thermoplastic polymer; melting the mixture; and forcing the melt through a die to produce the polymer composite having a fibril containing surface.Type: GrantFiled: January 12, 2018Date of Patent: February 11, 2020Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Fares D. Alsewailem, Yazeed A. Binkheder
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Patent number: 10556791Abstract: Monolithic integration of microelectromechanical systems (MEMS) sensors with complementary oxide semiconductor (CMOS) electronics for pressure sensors is a very challenging task. This is primarily due to the requirement for a very high quality thin diaphragm to provide the pressure dependent MEMS deformation that can be sensed and, when seeking absolute rather than relative pressure sensors, a sealed reference cavity. Accordingly, a new manufacturing process is established based upon back-etching and bonding of a monolithic absolute silicon carbide (SiC) capacitive pressure sensor. Beneficially, the process embeds the critical features of the MEMS within a shallow trench formed within the silicon substrate and then processing the CMOS circuit. The process further benefits as it maintains that those elements of the MEMS element fabrication process that are CMOS compatible are implemented concurrently with those CMOS steps as well as the metallization steps.Type: GrantFiled: July 19, 2017Date of Patent: February 11, 2020Assignee: King Abdulaziz City for Science and TechnologyInventors: Tariq Salim Alsaiary, Ibrahim Abdullah Alhomoudi
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Patent number: 10500218Abstract: Pharmaceutical complexes composed of drug molecules entrapped in cyclodextrin-based MOFs (CD-MOFs) are provided. Pharmaceutical tablets incorporating crystals of the pharmaceutical complexes for oral administration to a patient are also provided. In addition, methods of making the pharmaceutical complexes using anion-exchange reactions and methods of making the pharmaceutical complexes based on the co-crystallization of the drug molecules with cyclodextrin are provided. The pharmaceutical complexes include a CD-MOF and deprotonated drug anions associated with alkali metal cations in the CD-MOF superstructure.Type: GrantFiled: November 14, 2016Date of Patent: December 10, 2019Assignees: Northwestern University, King Abdulaziz City for Science and TechnologyInventors: Karel J. Hartlieb, James M. Holcroft, James Fraser Stoddart, Daniel Patrick Ferris
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Patent number: 10496596Abstract: The invention provide an application specific instruction-set processor (ASIP) that uses a Very Long Instruction Word (VLIW) for executing atomic application specific instructions. The ASIP includes one or more units for executing a first set of atomic application specific instructions for receiving a first set of data across a plurality of input data ports in a first operation specified in an instruction word. Further, the one or more units execute a second set of atomic application specific instructions for outputting a second set of data across a plurality of output data ports in a second operation specified in the instruction word, wherein an input data port of the plurality of input data ports and a corresponding output data port of the plurality of output data ports share a same address location and are specified as operands in the instruction word. Thus, the first operation and the second operation can occur simultaneously.Type: GrantFiled: February 13, 2017Date of Patent: December 3, 2019Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Mohammed S BenSaleh, Abdulfattah M Obeid, Yousef A Alzahrani, Ahmed F Shalash, Hossam A Fahmy, Hossam A Sayed, Mohamed A Aly
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Publication number: 20190348958Abstract: The invention provides a Low-voltage Differential Signaling (LVDS) receiver circuit that comprises a folded-cascode operational transconductance amplifier (OTA) that includes a pair of input branches and a pair of output branches. The pair of input branches of the folded-cascode OTA includes a p-channel metal-oxide semiconductor (PMOS) input transistor pair connected to a first supply voltage domain. The pair of output branches includes an output circuit connected to a second supply voltage domain. The LVDS receiver circuit further includes a common-mode feedback circuit connected to the pair of output branches of the folded-cascode OTA that controls the second supply voltage domain. The LVDS receiver circuit further includes a regenerative buffer circuit connected to the pair of output branches of the folded-cascode OTA and an output generated from the pair of output branches of the folded-cascode OTA directly operates the regenerative buffer circuit to produce a distortion-free output signal.Type: ApplicationFiled: August 17, 2016Publication date: November 14, 2019Applicant: The King Abdulaziz City for Science and TechnologyInventors: Mohammed Sulaiman BenSaleh, Syed Arsalan Jawed, Yasir Mehmood Siddiqi, Waqas Siddiqi, Shahab Ahmed Najmi
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Publication number: 20190337808Abstract: A 3D structure of the graphite-titanium-nanocomposite complex and a method of preparing the graphite-titanium-nanocomposite complex are disclosed. The Graphite-titanium-nanocomposite complex includes a metal core associated with the two phases, amine functionalized graphite, and amine functionalized titanium. The method of preparation includes amine functionalizing of graphite and titanium with coupling agents to produce amine functionalized titanium and graphite, further mixing with a metal ion solution for synthesizing an ion complex. Trisodium citrate solution and sodium borohydride solution is added to the ion complex to prepare a 3D structure of the graphite-titanium-nanocomposite complex, employed as a catalyst.Type: ApplicationFiled: December 7, 2017Publication date: November 7, 2019Applicant: The King Abdulaziz City for Science and TechnologyInventors: Nezar Hassan M. Khdary, Waleed Saad Ibrahim Alkhuraiji
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Patent number: 10450441Abstract: The invention provides a solid state dye laser and methods for preparing the solid state dye laser. The solid state dye laser includes a porous copolymer membrane of poly(vinylidenefloride-cohexafluoroproplyne (PVDF-HFP) and a laser dye. The laser dye is incorporated in pores of the copolymer membrane. The solid state dye laser is prepared using one of a phase inversion technique, a phase separation technique, and a breath figure technique.Type: GrantFiled: October 1, 2015Date of Patent: October 22, 2019Assignee: The King Abdulaziz City for Science and Technology (KACST)Inventors: Nezar Hassan Khdary, Mamdouh E Abdelsalam
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Patent number: 10445454Abstract: Interlaced bi-sensor super-resolution enhancement techniques and a resultant scalable pixel array suitable for a mega-pixel design are disclosed. The method includes interlacing a first array of pixels of a first size with a second array of pixels of a second size. The interlacing of the first array of pixels with the second array of pixels avoids crossing two or more photosensitive areas of the first array of pixels and the second array of pixels.Type: GrantFiled: November 2, 2016Date of Patent: October 15, 2019Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Munir Eldesouki, Faisal Muhammed Al-Salem
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Publication number: 20190311861Abstract: A TiO2-graphene-silver hybrid nanocomposite and a method of preparing the TiO2-graphene-silver hybrid nanocomposite is disclosed. The TiO2-graphene-silver hybrid nanocomposite at an average particle size ranging from 12-15 nanometers and having a surface area of 140.5 m2/g includes titanium oxide, graphene oxide and silver, the silver ranging from about 2 weight % to 10 weight %. The method of preparation includes introducing sol gel to a microwave irradiation to prepare an irradiated sample of TiO2-graphene oxide sample, wherein the sol gel includes TiO2 containing gel along with graphene containing sol, followed by adding AgNO3 solution to the TiO2-graphene oxide sample for preparing a TiO2-graphene-silver hybrid suspension. The TiO2-graphene-silver hybrid suspension undergoes microwave irradiation to prepare dried TiO2-graphene-silver hybrid composite.Type: ApplicationFiled: March 18, 2017Publication date: October 10, 2019Applicant: The King Abdulaziz City for Science and TechnologyInventors: Edreese Hosni Alsharaeh, Abdelrahman Ibrahim Soliman, Khalid Mustafa Abu-Salah, Sulaiman Mohammed Alfadul
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Patent number: 10437955Abstract: Interlaced bi-sensor super-resolution enhancement techniques and a resultant scalable pixel array suitable for a mega-pixel design are disclosed. The method includes interlacing a first array of pixels of a first size with a second array of pixels of a second size. The interlacing of the first array of pixels with the second array of pixels avoids crossing two or more photosensitive areas of the first array of pixels and the second array of pixels.Type: GrantFiled: November 2, 2016Date of Patent: October 8, 2019Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Munir Eldesouki, Faisal Muhammed Al-Salem
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Patent number: 10440008Abstract: The invention provides a method and system for dynamically generating a hint to recall a password for a user account of a user. The method for dynamically generating the hint to recall the password for the user account of the user includes the steps of receiving the password for the user account while the user inputs the password field of a login page. The password comprises a plurality of characters. The method, then, converts the password from the plain text to a hash value using a hash function. Thereafter, the method performs a modulo operation on the hash value to obtain an index pointing an object within an object library associated with the user. The method, then, displays, the object as the hint. The hint enables the user to create a mental association between the password and the object for the user account.Type: GrantFiled: September 7, 2016Date of Patent: October 8, 2019Assignee: THE KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Abdulrahman Saad Alarifi, Mansour Abdulrahman Alsaleh, Noura Nassir Alomar
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Publication number: 20190291071Abstract: Disclosed is a device for automated synthesis of homogenous slurry of metal nanoparticles operating under redox controlled conditions by wet chemical reaction method. Device comprises a three-layer reactor unit, multi-feed covering unit, an electric stirring unit system and ground fixing foundation unit.Type: ApplicationFiled: June 28, 2017Publication date: September 26, 2019Applicant: The King Abdulaziz City for Science and TechnologyInventors: Mohammed Ahmad S. Alshamsi, Sulaiman Mohammed Alfadul, Ahmad S. Alshamari
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Patent number: 10384172Abstract: A thin film composite membrane includes an active layer on a support membrane, wherein the active layer includes at least two chemically distinct first and second crosslinked polyamide film sub-layers. The first film sub-layer includes a polyamide unit; and the second film sub-layer includes a copolyamide with two chemically distinct polyamide units. The first film sub-layer is closer to the support than is the second film sub-layer.Type: GrantFiled: February 6, 2017Date of Patent: August 20, 2019Assignees: International Business Machines Corporation, King Abdulaziz City for Science and Technology (KACST)Inventors: Radwan A. Alrasheed, Blake W. Davis, Jacquana T. Diep, Geraud J. Dubois, Young-Hye Na, Majed S. Nassar, Ankit Vora
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Publication number: 20190226762Abstract: A laboratory equipment having an inlet and outlet tube for gas to enter and exit using specific shaped tubes with multi-outlet apertures in form of a network to allow the gas to enter the drying chamber to dry the material. The specific shaped tubes are in crescent shape and cross each other to have maximum surface area exposure to the drying chamber and effectively contact the material that is being dried. A gas inlet valve and outlet valve control the flow, pressure and temperature of the gas that is being used for drying the material to make nano material. A method of using the laboratory equipment with special gas inlet tubes is used for drying the material in form a slurry to make dry nano material.Type: ApplicationFiled: January 24, 2018Publication date: July 25, 2019Applicant: King Abdulaziz City for Science and TechnologyInventors: MOHAMMED AHMAD S. ALSHAMSI, SULAIMAN MOHAMMED ALFADUL
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Patent number: 10355368Abstract: An energy harvesting device includes: a substrate; a plurality of split-ring resonators (SRRs) on the substrate configured to generate a voltage based on receiving incident light waves; and a transmission line electrically coupled to the plurality of SRRs, the transmission line being configured to transmit the generated voltage to an external system.Type: GrantFiled: May 26, 2016Date of Patent: July 16, 2019Assignee: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Mohammed R. AlShareef, Omar M. Ramahi
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Patent number: 10351756Abstract: Organoclay is used as an alternative emulsifier and reinforcing agent to enhance the strength of emulsified polymeric gel aqueous solutions and form water in oil emulsions. The stability of the emulsion can be controlled by controlling salinity and the intensity of initial mixing. The new system can be used for water shut-off treatments as well as a relative permeability modifier in high water permeability zones. In addition, the system can tolerate salts much better than classical surfactants. This system will be appropriate for wellbores having high temperature (>85° C.) with harsh environmental conditions.Type: GrantFiled: March 12, 2018Date of Patent: July 16, 2019Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and TechnologyInventors: Ibnelwaleed Ali Hussein, Ahmad Akanbi Adewunmi, Abdullah Saad Sultan, Khalid Saad Elkarsani, Ghaithan A. Al-Muntasheri
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Patent number: 10295497Abstract: A disposable screen-printed microchip based on an organic membrane sensitive layer is presented. The microchip is highly responsive for the determination of Lead(II). The microchip is composed of a composite sensitive material which comprises carbon nano-tubes “CNTs” and titanium (IV) oxide nano-particles embedded in a PVC membrane which was deposited on the surface of a plastic screen printed micro-electrode using a new methodology. The prepared disposable microchip provides a linear response for Pb2+ ions covering the concentration range of 1×10?6 to 1×10?1 mole L?1 with high sensitivity (49 mV), a long life span (>4 months) and short response time (10 s). The merits offered by the micro-sensor or microchip include small size, simple fabrication, mass production, integration feasibility and cost effectiveness and automation.Type: GrantFiled: June 28, 2016Date of Patent: May 21, 2019Assignee: King Abdulaziz City for Science and Technology (KACST)Inventors: Hassan Abdou Arida, Mohammad Ateeq AlDosari
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Publication number: 20190127331Abstract: Provided herein are substituted haloimidazole crystals, the substituted haloimidazole crystal comprising a substituted haloimidazole compound wherein the substituents are selected from the group consisting of hydrogen, an alkyl, and a halogen. The substituted haloimidazole crystals may further comprise second substituted haloimidazole. The substituted haloimidazole crystals may be piezoelectric, ferroelectric, flexible, or any combination thereof. Also provided herein are methods for preparing substituted haloimidazole crystals.Type: ApplicationFiled: April 12, 2017Publication date: May 2, 2019Applicants: NORTHWESTERN UNIVERSITY, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST), UCHICAGO ARGONNE, LLCInventors: Magdalena Owczarek, Karl A. Hujsak, Daniel P. Ferris, Aleksandrs Prokofjevs, Dravid P. Vinayak, James Fraser Stoddart, Daniel Seungbum Hong