Patents Examined by Matthew E Hoban
  • Patent number: 11957058
    Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.
    Type: Grant
    Filed: February 18, 2023
    Date of Patent: April 9, 2024
    Assignee: Purdue Research Foundation
    Inventors: Mukerrem Cakmak, Armen Yildirim, Rahim Rahimi
  • Patent number: 11952521
    Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4??I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least ?0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 ?m.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: April 9, 2024
    Assignee: CURRENT LIGHTING SOLUTIONS, LLC
    Inventors: James Edward Murphy, Srinivas Prasad Sista, Samuel Joseph Camardello
  • Patent number: 11952688
    Abstract: Loose-fill insulating products may include mineral wool, in particular glass wool or rock wool, in the form of down, nodules, or flakes, which are obtainable by an aeration that allows the mineral wool to be expanded. The mass distribution of the agglomerates may be obtained by screening 2 to 5 g of insulating product using a vibrating sieve shaker with a stack of screens and a maximum amplitude of oscillation of 3 mm set to 1.5 to 2.5 mm, 1.8 to 2.2 mm, or 2 mm, for 5 minutes, satisfies a relationship (% agglomerates 6-13)?(% agglomerates<6)?5%, where (% agglomerates 6-13) is mass percentage of agglomerates passing through 6 mm and 13 mm screens, and (% agglomerates<6) is mass percentage of agglomerates passing through a 6 mm screen.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: April 9, 2024
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Nicolas Dovetta, Mathilde Siband, Foucault De Francqueville
  • Patent number: 11939503
    Abstract: Disclosed are a preparation method for manganese-doped red phosphor, a device and a backlight module including the product. The method includes: 1) mixing A2BF6 polycrystalline particles with mill balls; 2) mixing A2BF6 powder obtained after ball-milling with a hydrofluoric acid for secondary crystallization; 3) filtering out solid particles in A2BF6 and hydrofluoric acid solution after the secondary crystallization; 4) performing ion exchange between A2BF6 particles and A2BF6; and 5) filtering out solid particles to obtain a filter cake, and performing drying treatment to obtain manganese-doped red phosphor.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 26, 2024
    Assignees: Hefei University of Technology, Intelligent Manufacturing Institute of HFUT
    Inventors: Lei Chen, Peng Cheng, Jie Chen, Yunfei Tian, Jialong Wang, Liangrui He, Qiuhong Zhang, Haiyong Ni
  • Patent number: 11939266
    Abstract: Disclosed herein is a dual density disc comprising a dense outer tube comprising alumina having a purity of greater than 99%; and a porous core comprising alumina of a lower density than a density of the dense outer tube; wherein the porous core has an alumina purity of greater than 99%. Disclosed herein too is method comprising disposing in a dense outer tube a slurry comprising alumina powder and a pore former; heating the dense outer tube with the slurry disposed therein to a temperature of 300 to 600° C. to activate the pore former; creating a porous core in the dense outer tube; and sintering the dense outer tube with the porous core at a temperature of 800 to 2000° C. in one or more stages.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: March 26, 2024
    Assignee: MOTT CORPORATION
    Inventors: Jeffery Caswell, Piyush Kar, Alex Hill, Alfred M. Romano, Aravind Mohanram
  • Patent number: 11938011
    Abstract: A light emitting composition including first color emitters and second color emitters. The first color emitters are configured to emit, upon exposure to an energy source, visible light at a target color in response to absorption of energy across a first band of wavelengths. The second color emitters are configured to emit, upon exposure to the energy source, visible light at the target color in response to absorption of energy across a second band of wavelengths. The light intensity observable at the target color is enhanced relative to reflected white light without emission from the first and second color emitters. The light emitting composition can be a part of a paint, an ink, a fabric, a thread, a road sign, a highway marking, an automobile, a boat, a plane, a reflector, a building product, a concrete product, an epoxy product, a jewelry product, colored contact lens, a candle product, a rubber product, a plastic product, or other colored surface.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 26, 2024
    Inventors: Frederic A. Bourke, Jr., Harold Walder
  • Patent number: 11932790
    Abstract: Disclosed are a red light and near-infrared light-emitting material and a preparation method thereof, and a light-emitting device including the light-emitting material. The red light and near-infrared light-emitting material contains a compound represented by a molecular formula, aSc2O3·Ga2O3·bR2O3, wherein the element R includes one or two of Cr, Ni, Fe, Yb, Nd or Er; 0.001?a?0.6; and 0.001?b?0.1. The light-emitting material can be excited by a spectrum having a wide wavelength range (ultraviolet light or purple light or blue light) to emit light with a wide spectrum of 650 nm to 1700 nm or multiple spectra, thus having higher light-emitting intensity.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: March 19, 2024
    Assignee: GRIREM ADVANCED MATERIALS CO., LTD.
    Inventors: Xiaoxia Chen, Yuanhong Liu, Ronghui Liu, Yuan Xue
  • Patent number: 11926773
    Abstract: Provided herein are organic-inorganic hybrid-perovskites, including metal halide perovskites having a 1D crystal structure. The metal halide perovskites may be luminescent. The metal halide perovskites may include a dopant, including an emitter dopant. Methods of forming metal halide perovskites, and devices including the metal halide perovskites also are provided.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: March 12, 2024
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Biwu Ma, Zhao Yuan, Chenkun Zhou
  • Patent number: 11926775
    Abstract: This specification discloses methods of enhancing the stability and performance of Eu2+ doped narrow band red emitting phosphors. In one embodiment the resulting phosphor compositions are characterized by crystallizing in ordered structure variants of the UCr4C4 crystal structure type and having a composition of AE1?xLi3?2yAl1+y?zSizO4?4y?zN4y+z:Eux (AE=Ca, Sr, Ba, or a combination thereof, 0<x<0.04, 0?y<1, 0<z<0.05, y+z?1). It is believed that the formal substitution (Al,O)+ by (Si,N)+ reduces the concentration of unwanted Eu3+ and thus enhances properties of the phosphor such as stability and conversion efficiency.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: March 12, 2024
    Assignee: Lumileds LLC
    Inventors: Peter Josef Schmidt, Philipp-Jean Strobel, Volker Weiler, Andreas Tücks
  • Patent number: 11913847
    Abstract: Mechanoluminescent devices and articles, such as wearable articles, that include mechanoluminescent devices. The mechanoluminescent devices may have a lateral type architecture or a vertical type architecture. The mechanoluminescent devices may be sensors, including pressure sensors.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: February 27, 2024
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Okenwa I. Okoli, Md Abu S. Shohag, Nirmal Adhikari
  • Patent number: 11912911
    Abstract: Quantum dots surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2, a curable composition including the quantum dots, a cured layer, and a color filter. In Chemical Formula 1 and Chemical Formula 2, each substituent is the same as defined in the specification.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 27, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yonghee Kang, Jonggi Kim, Jihyeon Yim, Dongjun Kim, Misun Kim, Minjee Park, Bumjin Lee, Injae Lee, Mi Jeong Choi
  • Patent number: 11912917
    Abstract: A method of manufacturing quantum dots includes placing nickel powder having a certain particle size, a precursor material, and an organic solvent into a container, maintaining a pressure in the container at a certain value, and synthesizing quantum dots by stirring the nickel powder, the precursor material, and the organic solvent in the container.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: February 27, 2024
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Yu Song Choi, Tae Young Ahn, Min U Kim, Jang Hyeon Cho
  • Patent number: 11912884
    Abstract: Provided herein are conductive inks and methods of formulation thereof, whose electric and mechanical properties (e.g. viscosity and surface tension) enable its use in a wide array of printing techniques. The outstanding conductivity, thermal stability, chemical stability, and flexibility of graphene in the inks herein enable the production of low-cost electronics with tunable electrochemical properties.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: February 27, 2024
    Assignee: NanoTech Energy, Inc.
    Inventors: Maher F. El-Kady, Shannon Price, Gaurav Tulsyan
  • Patent number: 11905198
    Abstract: A glass furnace including an additive-containing product including an additive selected from: phosphorus compounds other than glasses and vitroceramics, tungsten compounds other than glasses and vitroceramics, molybdenum compounds other than glasses and vitroceramics, iron in the form of metal, aluminum in the form of metal, silicon in the form of metal, and their mixtures, silicon carbide, boron carbide, silicon nitride, boron nitride, glasses including elemental phosphorus and/or iron and/or tungsten and/or molybdenum, vitroceramics including elemental phosphorus and/or iron and/or tungsten and/or molybdenum, and their mixtures, and having the following chemical analysis, exclusively of the additive, as a percentage by weight on the basis of the oxides: Cr2O3?2%, and Cr2O3+Al2O3+CaO+ZrO2+MgO+Fe2O3+SiO2+TiO2?90%, and Cr2O3+Al2O3+MgO?60%, the content by weight of additive being in the range 0.01% to 6%.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 20, 2024
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Thibault Champion, Pierrick Vespa, Lionel Moitrier, Olivier Citti, Julien Pierre César Fourcade, Nabil Nahas
  • Patent number: 11905447
    Abstract: A cadmium free quantum dot including a core that includes a first semiconductor nanocrystal including zinc, tellurium, and selenium, and a semiconductor nanocrystal shell that is disposed on the core and includes a zinc chalcogenide, wherein the quantum dot further includes magnesium and the mole ratio of Te:Se is greater than or equal to about 0.1:1 in the quantum dot; a production method thereof; and an electronic device including the same.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: February 20, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungwoo Hwang, Yong Wook Kim, Soo Kyung Kwon, Seon-Yeong Kim, Ji-Yeong Kim
  • Patent number: 11905446
    Abstract: A set of nanocrystals comprising a semiconductor comprising A representing a metal or metalloid in the +III oxidation state and B representing an element in the ?III oxidation state, the nanocrystals being doped, on average per nanocrystal, by an atom of C chosen from the transition metals in the +I or +II oxidation state and various uses thereof.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 20, 2024
    Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Tugce Akdas, Peter Reiss
  • Patent number: 11908601
    Abstract: There is provided a magnetic responsiveness composite material capable of increasing viscosity by applying a magnetic field when compounded together with a liquid in a composition. The magnetic responsive composite material comprises first particles as core particles composed of a nonmagnetic inorganic material and second particles composed of a magnetic material adhering to at least a part of surfaces of the first particles. A lipophilic treatment agent is applied to at least a part of surfaces of the second particles. The second particles satisfy a relationship of having a smaller average particle diameter than that of the first particles. A lipophilic treatment agent is preferably at least one kind selected from coupling agents and surfactants.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 20, 2024
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Patent number: 11898072
    Abstract: A method for preparing a fluorescent semiconductor nanocrystal material. At least one semiconductor nanocrystal precursor is uniformly mixed with a micro/mesoporous material to form a mixture. The mixture is calcined under a temperature higher than or equal to a collapse temperature of the micro/mesoporous material to obtain the fluorescent semiconductor nanocrystal material. This application also provides a fluorescent semiconductor nanocrystal material prepared through the method, and applications thereof in the manufacture of a light-emitting diode device and a color conversion display panel.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: February 13, 2024
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Liang Li, Qinggang Zhang
  • Patent number: 11898073
    Abstract: A semiconductor nanocrystal and a preparation method thereof, where the semiconductor nanocrystal include a bare semiconductor nanocrystal and a water molecule directly bound to the bare semiconductor nanocrystal.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-Joo Jang, Seok-Hwan Hong, Shin-Ae Jun, Hyo-Sook Jang
  • Patent number: 11898077
    Abstract: An object is to provide a composition that contains a phosphorus-containing carbon quantum dot and can efficiently emit relatively long wavelength light. The composition to achieve the above object contains: a phosphorus-containing carbon quantum dot containing phosphorus as a heteroatom; and a smectite.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: February 13, 2024
    Assignee: Kureha Corporation
    Inventors: Junya Uchida, Takumi Katsurao, Hiroshi Sakabe