Inorganic Luminescent Compositions With Organic Nonluminescent Material Patents (Class 252/301.36)
  • Patent number: 11518935
    Abstract: The present invention belongs to the technical field of inorganic luminescent materials, particularly relates to a nitride fluorescent material, and further discloses a light-emitting device containing such a fluorescent material. The nitride fluorescent material contains a compound with a structure like MmAlxSiyN3: aR, bEu, cCe. The fluorescent material has very high physical stability and chemical stability, and the fluorescent material is better in crystallization, and thus has relatively high external quantum efficiency. When being applied to a light-emitting device, the fluorescent material can fully exert the advantages of good stability and high external quantum efficiency, and the light-emitting efficiency and stability of the light-emitting device can be further improved.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 6, 2022
    Assignees: GRIREM ADVANCED MATERIALS CO., LTD., GUOKE RE ADVANCED MATERIALS CO., LTD.
    Inventors: Ronghui Liu, Yuanhong Liu, Lei Chen, Ze Jiang, Lengleng Shao
  • Patent number: 11472712
    Abstract: Provided is a metal oxide production apparatus that implements a flux evaporation method. The production apparatus includes a firing furnace configured to subject a metal compound to firing in the presence of flux, a cooling pipe connected to the firing furnace and configured to convert vaporized flux resulting from the firing into powder, and a recovery means configured to recover powdered flux converted in the cooling pipe. Furthermore, provided is a metal oxide production method comprising a step (1) of subjecting a metal compound to firing in the presence of flux and obtaining a metal oxide and vaporized flux, a step (2) of converting the vaporized flux into powder by cooling the vaporized flux, and a step (3) of recovering powdered flux resulting from the converting.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: October 18, 2022
    Assignee: DIC Corporation
    Inventors: Kiyoo Kamei, Jian-Jun Yuan, Hitoshi Sekine, Hiroshi Kinoshita
  • Patent number: 11473012
    Abstract: This invention is a commercially manufactured article of manufacture (such as a shoulder patch) comprising an infrared (IR) phosphorescent material that emits in the IR wavelength range (e.g., from approximately seven-hundred nanometers (˜700 nm) to approximately one millimeter (˜1 mm)) after being excited by incident wavelengths of between ˜100 nm and ˜750 nm (or visible light). In other words, once the material has been exposed to visible light, the material will continue to emit in the IR wavelength range for a period of time, even when the material is no longer exposed to the visible light.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: October 18, 2022
    Assignee: Battle Sight Technologies, LLC
    Inventors: Nicholas R. Ripplinger, Christopher J. Vogt
  • Patent number: 11427756
    Abstract: Suggested is a semiconductor nano-sized light emitting material having a ligand.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: August 30, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Sanaa Khalil, Kobi Oded, Denis Glozman, Ehud Shaviv
  • Patent number: 11407914
    Abstract: A print material includes a vinylic molecule, a vinylic cross-linker molecule having a plurality of vinyl groups, a quantum dot, a light-scattering particle having a surface composition, and a dispersant having a chemical affinity matched to the surface composition. Methods of making and using such print materials are also described.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 9, 2022
    Assignee: Kateeva, Inc.
    Inventors: Elena Rogojina, Inna Gurevitch, Teresa A. Ramos, Siddharth Harikrishna-Mohan, Robert Richard Roth, Noa Cohen, Elena Sheina
  • Patent number: 11370917
    Abstract: A curable hot-melt silicone composition exhibits excellent mechanical properties, particularly strength and extension, even when formed in a film or sheet shape. The curable hot-melt silicone composition contains (A) alkenyl group-containing organopolysiloxane having at least 2 alkenyl groups per molecule, (B) branched organohydrogenpolysiloxane having at least 2 silicon-bonded hydrogen atoms per molecule, at 0.1 to 5% by mass relative to the total mass of the composition, (C) additive represented by average unit formula (C-1), (D) hydrosilylation catalyst, and (E) silica.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: June 28, 2022
    Assignee: DuPont Toray Specialty Materials Kabushiki Kaisha
    Inventors: Shunya Takeuchi, Sawako Inagaki, Akito Hayashi, Akihiko Kobayashi
  • Patent number: 11227766
    Abstract: A dielectric composition including a metal oxide particle including a diameter of 5 nanometers or less capped with an organic ligand at at least a 1:1 ratio. A method including synthesizing metal oxide particles including a diameter of 5 nanometers or less; and capping the metal oxide particles with an organic ligand at at least a 1:1 ratio. A method including forming an interconnect layer on a semiconductor substrate; forming a first hardmask material and a different second hardmask material on the interconnect layer, wherein at least one of the first hardmask material and the second hardmask material is formed over an area of interconnect layer target for a via landing and at least one of the first hardmask material and the second hardmask material include metal oxide nanoparticles; and forming an opening to the interconnect layer selectively through one of the first hardmask material and the second hardmask material.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 18, 2022
    Assignee: Intel Corporation
    Inventors: Marie Krysak, Florian Gstrein, Manish Chandhok
  • Patent number: 11226336
    Abstract: The present disclosure provides quantum dots and methods of making the quantum dots comprising a substantially homogeneous population of monomeric nanocrystals, of a very small size, about 7 nm to about 12 nm in diameter. The method comprises mixing a nanocrystal coated with weakly binding ligands or ions with a polymer in a solution and incubating at a temperature greater than about 100° C., thereby forming a quantum dot having a substantially homogenous population of monomeric nanocrystals. The quantum dots can be further conjugated to bioaffinity molecules, enabling broad utilization of compact, biofunctional quantum dots for studying crowded macromolecular environments.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: January 18, 2022
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Andrew M. Smith, Chunlai Tu, Liang Ma
  • Patent number: 11111385
    Abstract: A silicone composition includes a multiphase mixture of a low-refractive silicone having a refractive index n25D589 less than 1.45 and a high-refractive silicone having a refractive index n25D589 greater than 1.50, wherein a proportion of high-refractive silicone is 0.1 to 5.0 mass percent in relation to a total mass of high-refractive and low-refractive silicone, and the high-refractive silicone forms inclusions within the low-refractive silicone.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: September 7, 2021
    Assignee: OSRAM OLED GmbH
    Inventors: Hansjörg Schöll, Stephan Blaszczak
  • Patent number: 11091691
    Abstract: The disclosure provides a quantum dot composition, a quantum dot luminescent material, a preparation method thereof and a light-emitting device containing the same. The quantum dot composition includes a microemulsion, a polymer precursor dispersing the microemulsion, wherein the microemulsion includes quantum dots, a dissolution medium dissolving the quantum dots, and an emulsifier encapsulating the dissolution medium.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: August 17, 2021
    Assignee: Najing Technology Corporation Limited
    Inventors: Long Fang, Mengbing Lyu, Hailin Wang, Fei Zhao
  • Patent number: 11038227
    Abstract: An outer cover of a pouch-style battery includes a nanoceramic coating. Constructing an outer cover including a nanoceramic coating may include forming a malleable layer, applying a sealing layer to an inside surface of the malleable layer, and applying the nanoceramic layer to an outside surface of the malleable layer. Fabricating an outer cover including a nanoceramic coating may further include applying a protective film to an outside surface of the outer cover, which may be removed shortly before or after installation of a battery cell for which the outer cover is manufactured. Fabricating an outer cover including a nanoceramic coating may also include applying one or more adhesive layers, for example an adhesive layer between the malleable layer and the sealing layer. An outer cover including a nanoceramic coating may be sealed around a battery-active-material assembly to form a pouch-style battery cell.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: June 15, 2021
    Assignee: Apple Inc.
    Inventors: YooEup Hyung, Sang Young Yoon, Dennis M. Foley, Richard M. Mank
  • Patent number: 10957825
    Abstract: A lighting module according to an embodiment of the invention includes: a substrate; a plurality of light emitting devices disposed in N rows (N is an integer of 1 or more) on the substrate; a first resin layer covering the plurality of light emitting devices; a first diffusion layer disposed on the first resin layer and diffusing light emitted from the first resin layer; and a second diffusion layer disposed on the first diffusion layer and diffusing light emitted from the first diffusion layer, wherein the first diffusion layer includes a diffusing agent, and the second diffusion layer includes at least one of a phosphor and ink particles.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 23, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sa Rum Han, Dong Il Eom, Young Hun Ryu
  • Patent number: 10872989
    Abstract: An encapsulant material for a photovoltaic module. The encapsulant material includes: between 30 and 50 parts by weight of fiber cloth and between 50 and 70 parts by weight of acrylic powder coating. The fiber cloth is made of fiber material. The acrylic powder coating includes an acrylic resin, a curing agent, and an additive. The acrylic powder coating is uniformly coated on the fiber cloth. A method of preparing the encapsulant material includes: uniformly coating the acrylic powder coating on the fiber cloth, thermally bonding the acrylic powder coating and the fiber cloth using pressure and heat, and piecewise cutting the thermally bonded acrylic powder coating and the fiber cloth.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 22, 2020
    Assignees: TIGER NEW SURFACE MATERIALS (SUZHOU) CO., LTD., SUNMAN (SHANGHAI) CO., LTD.
    Inventors: Tianhe Dai, Biao Luo, Zhicheng Wang, Guozhu Long, Jiaoyan Liu, Chengrong Lian, Weili Wang
  • Patent number: 10822459
    Abstract: The present invention relates to a formulation suitable for the preparation of a highly refractive encapsulation material with good barrier properties towards water vapor for an LED, to an encapsulation material for an LED having a high refractive index and good barrier properties towards water vapor which is obtainable from said formulation and to a light emitting device (LED) comprising said encapsulation material. The formulation comprises a polymer comprising a first repeating unit U1 and a second repeating unit U2; and a surface-modified nanoparticle, wherein the surface-modified nanoparticle does not contain any zirconium dioxide.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: November 3, 2020
    Assignee: AZ Electronic Materials (Luxembourg) S.a.r.l.
    Inventors: Ralf Grottenmueller, Abraham Casas Garcia-Minguillan, Fumio Kita, Dieter Wagner
  • Patent number: 10790419
    Abstract: An LED filament comprises at least one LED section, a conductive section, two conductive electrodes and a light conversion layer. The conductive section is used to electrically connect two adjacent LED sections. The two conductive electrodes are electrically connected to each of the LED sections. Each of the LED sections includes at least two LED chips electrically connected to each other. The light conversion layer covers the LED sections, the conductive sections and the conductive electrodes, and a part of the two electrodes is exposed respectively. Since the LED filament includes the LED section and the conductive section, when the LED filament is bent, the stress is easily concentrated on the conductive section. Therefore, the breakage probability of the conductive wires connected within the LED section is reduced during bending. The quality of the LED filament and its application is improved.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 29, 2020
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Weihong Xu, Yukihiro Saito, Hayato Unagike, Aiming Xiong, Junfeng Xu, Yiching Chen
  • Patent number: 10775669
    Abstract: A light emitting module includes a light transmissive light guiding plate, a light adjustment portion, and a light emitting element. The light guiding plate has a first main surface serving as a light emitting surface which emits light outside, and a second main surface opposite to the first main surface. The second main surface is provided with a recess. The light adjustment portion is disposed in the recess of the light guiding plate. The light emitting element is bonded to the light adjustment portion. The light adjustment portion includes a wavelength conversion portion and a light diffusion portion. The light diffusion portion has a wavelength conversion portion side on which the wavelength conversion portion is bonded. The light diffusion portion is disposed on a bottom of the recess. The wavelength conversion portion is bonded to the light emitting element.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 15, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Mamoru Imada, Toshiaki Moriwaki, Yusaku Achi
  • Patent number: 10766815
    Abstract: An engineered stone includes a light transmitting mother material (I) and a phosphorescent chip (II). The light transmitting mother material (I) includes about 7 wt % to about 12 wt % of an unsaturated polyester resin (A), about 88 wt % to about 93 wt % of a silica-containing compound (B) and about 0.01 part by weight to about 1 part by weight of an organic/inorganic pigment (C) based on about 100 parts by weight of the unsaturated polyester resin (A). The phosphorescent chip (II) includes about 8 wt % to about 15 wt % of an unsaturated polyester resin (A?), about 85 wt % to about 92 wt % of a silica-containing compound (B?) and about 2 parts by weight to about 10 parts by weight of a phosphorescent pigment (D) based on about 100 parts by weight of the unsaturated polyester resin (A?).
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: September 8, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Heecheol Lee, Cheol-Yeon Hwang, Kyunghwan Kim, Seul-Gi Bae, Changho Son, Sung Jin An
  • Patent number: 10756243
    Abstract: Disclosed herein are a light-emitting diode (LED) package structure and a method producing the same. The LED package structure includes a substrate; and a light-emitting unit disposed on the substrate. The light-emitting unit comprises a gallium nitride-based semiconductor, and a polymeric layer encapsulating the gallium nitride-based semiconductor. Also disclosed herein is a method of producing the LED package structure. The method comprises: providing a substrate; electrically connecting a gallium nitride-based semiconductor onto the substrate; overlaying the gallium nitride-based semiconductor with a slurry comprising a resin and a plurality of composite fluorescent gold nanocluster; and curing the slurry overlaid on the gallium nitride-based semiconductor to form a solidified polymeric layer.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 25, 2020
    Assignee: CHUNG YUAN CHRISTIAN UNIVERSITY
    Inventors: Cheng-An Lin, Yeeu-Chang Lee, Cheng-Yi Huang, Chi-An Chen, Yi-Tang Sun
  • Patent number: 10733919
    Abstract: A self luminous sign, having an aluminum board, an aluminum frame and at least one luminous module; the luminous module is attached on the aluminum board, and the aluminum board is mounted to the aluminum frame; each luminous module comprises the following components: resins, luminous powder coated with silane coupling agent, antioxidants and UV absorbents in a mass percentage of 100:(30-300):(0.01-10):(0.01-10).
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: August 4, 2020
    Inventors: Bo Zhou, Kaikai Zhou
  • Patent number: 10711187
    Abstract: A method of manufacturing a fluoride phosphor represented by a chemical formula A3MF7:Mn4+ includes forming a first mixture by mixing a first raw material containing A2MF6 and a second raw material containing AF or AHF2, forming a second mixture by mixing the first mixture and a sintering aid, and firing the second mixture. In the chemical formula, A is at least one selected from Li, Na, K, Rb, Cs and mixtures thereof, and M is at least one selected from Si, Ti, Zr, Hf, Ge, Sn, and mixtures thereof.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Do Hoon Kim, Izawa Takamasa, Chul Soo Yoon, Sung Woo Choi
  • Patent number: 10703870
    Abstract: An optical film, a production method therefor, a lighting device and a display device are provided. The present application is capable of providing an optical film having excellent color purity and efficiency, the optical film being capable of providing a lighting device having excellent color characteristics. The optical film of the present application can stably maintain the above described excellent characteristics for a long period of time. The optical film of the present application can be used in various applications, including various lighting devices, photovoltaic cell applications, optical filters or photoconverters.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Tae Gyun Kwon, Su Young Ryu, Young Shin Lee, Moon Soo Park, Seong Min Lee
  • Patent number: 10658552
    Abstract: The invention provides an LED package configured to generate blue LED package light, wherein the LED package comprises a solid state light source configured to generate blue light source light, a luminescent material configured to convert part of the light source light into luminescent material light comprising green light, and a blue pigment configured to absorb part of the luminescent material light.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 19, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Hans-Helmut Bechtel, Thomas Diederich, Erik Maria Roeling, Marinus Johannes Petrus Maria van Gerwen
  • Patent number: 10626325
    Abstract: A transparent phosphorescence material includes a mixture of a phosphorescent material powder obtained by pulverizing a phosphorescent material, a resin of a phenol, and a curing agent. The phosphorescent material powder has an average particle diameter of 10 to 20 ?m, the resin is a modified bisphenol, and the curing agent is an aliphatic polyamine. A mass ratio of the phosphorescent material powder, the resin, and the curing agent in the mixture is such that the phosphorescent material powder is 15 to 25 wt %, the resin is 50 to 70 wt %, and the curing agent is 15 to 25 wt %. When the transparent phosphorescence material is applied to a surface of a metal substrate, the surface of the metal substrate is visible through the transparent phosphorescence material. The transparent phosphorescence material emits a light due to phosphorescence in the dark.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: April 21, 2020
    Assignee: TATEYAMA KAGAKU INDUSTRY CO. LTD.
    Inventors: Takumi Higa, Tomoko Shirakawa, Hitoshi Moriizumi
  • Patent number: 10619092
    Abstract: Provided is a wavelength conversion film-forming composition which forms a wavelength conversion film by being applied to a substrate to form a coating film and curing the coating film, the wavelength conversion film-forming composition including at least quantum dots, a volatile component, and a binder that is soluble in the volatile component and/or a binder precursor that is soluble in or compatible with the volatile component, in which the wavelength conversion film-forming composition is gellable in the presence of the volatile component.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Kamo, Tatsuya Oba
  • Patent number: 10611958
    Abstract: Disclosed are highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core of InP and shell layers of GaP and AlP. The nanostructures may have an additional shell layer. Also provided are methods of preparing the nanostructures, films comprising the nanostructure and devices comprising the nanostructures.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 7, 2020
    Assignee: Nanosys, Inc.
    Inventors: John J. Curley, Chunming Wang
  • Patent number: 10597581
    Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, wherein the organic fluorescent substance includes a green fluorescent substance having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength, and a red fluorescent substance having a maximum light emission wavelength in a 600 nm to 660 nm range when irradiating light including a 450 nm wavelength, the green fluorescent substance and the red fluorescent substance have a molar ratio of 5:1 to 50:1, and the color conversion film has a light emission peak with a full width at half maximum (FWHM) of 50 nm or less in a 510 nm to 560 nm range and a light emission peak with a FWHM of 90 nm or less in a 600 nm to 660 nm range when irradiating light, a method for preparing the same, and a backlight unit including the color conversion film.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 24, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Nari Kim, Sehwan Son, Dong Mok Shin, Ji Ho Kim, Joo Yeon Seo, Byeong In Ahn, Du Hyeon Shin
  • Patent number: 10573791
    Abstract: Quantum dot polymer composites for on-chip light emitting diode applications are described. In an example, a composite for on-chip light emitting diode application includes a polymer matrix, a plurality of quantum dots dispersed in the polymer matrix, and a base dispersed in the polymer matrix.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: February 25, 2020
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Kari N. Haley, Benjamin Daniel Mangum, Weiwen Zhao, Nathan Evan Stott, Juanita N. Kurtin
  • Patent number: 10533996
    Abstract: In some embodiments, the present disclosure pertains to new compositions of matter that comprise phosphorescent reporters. In some embodiments, the phosphorescent reporters of the present disclosure comprise strontium aluminate. In some embodiments, the strontium aluminate is doped with europium and dysprosium (SrAl2O4:Eu2+, Dy3+). Additional embodiments of the present disclosure pertain to methods of making the aforementioned phosphorescent reporters. In some embodiments, the method includes size reduction of inorganic phosphorescent powders through a combination of wet milling and settling. In additional embodiments, the present disclosure pertains to methods of detecting the phosphorescent reporters in various settings, such as diagnostic settings.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: January 14, 2020
    Assignee: University of Houston
    Inventors: Richard Willson, Andrew Paterson
  • Patent number: 10479931
    Abstract: A composition and a wavelength converter are provided. The composition includes at least: quantum dots having an emission peak wavelength in a visible light region; and quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region. The wavelength converter includes, in a polymer: quantum dots having an emission peak wavelength in a visible light region; quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region; and an oxide formed by oxidizing at least a part of the quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Naoyoshi Yamada
  • Patent number: 10439155
    Abstract: The present disclosure is directed to quantum dots comprising a core-shell structure and a novel arrangement of ligands thereon. Light emitting diodes including the quantum dots, light emitting devices including the same as well as methods associated with preparation and use of such compounds and devices are also provided.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: October 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Hyun Park, Kyu-Nam Kim, Young-Ju Ryu
  • Patent number: 10436418
    Abstract: To provide a wavelength conversion member, molded body, wavelength conversion apparatus, sheet member, light emitting apparatus, light guide apparatus and display apparatus particularly capable of suppressing the black discoloration occurrence of a resin layer positioned immediately above a light emitting device as compared with conventional techniques, the present invention provides an LED apparatus having a storage portion, an LED chip disposed inside the storage portion, and a resin layer filled inside the storage portion, the resin layer is comprised by having a first resin layer on the side close to an LED device, and a second resin layer on the side far from the LED device, a light scattering agent is included in at least the first resin layer, and quantum dots are not included in the first resin layer and are included in the second resin layer.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 8, 2019
    Assignee: NS MATERIALS INC.
    Inventors: Akiharu Miyanaga, Eiichi Kanaumi
  • Patent number: 10418532
    Abstract: Provided are a semiconductor light-emitting device capable of easily adjusting the light intensity of output light and a method for producing such a semiconductor light-emitting device. The semiconductor light-emitting device includes: a substrate; a light-emitting element mounted on the substrate; and a seal layer provided on the substrate so as to cover the light-emitting element. The seal layer contains resin and inorganic pigment particles. The inorganic particles have an average particle size of 1 ?m or larger and 50 ?m or smaller in a volumetric basis particle size distribution by a laser diffraction scattering particle size distribution measurement method. The inorganic particles distributed at a concentration becoming thicker in a direction toward said substrate.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 17, 2019
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Tsutomu Okubo
  • Patent number: 10403798
    Abstract: A device and associated method are provided for a light emitting diode device (LED) with suppressed quantum dot (QD) photobrightening. The QD surfaces, with a maximum cross-sectional dimension of 10 nanometers, are treated with a solution including a multi-valent cation salt. In response to heating the solution, multi-valent cations become attached to the surface of the QD nanocrystals, forming treated QDs that are deposited overlying a top surface of an LED. The LED device emits a non-varying intensity of first wavelength light in the visible spectrum from the treated QDs, when subjected to a continuous exposure of a second wavelength of LED light having an intensity of greater than 50 watts per square centimeter. For example, blue, green, or red color light may be emitted when exposed to LED light in the ultraviolet (UV) spectrum, or a green or red color light when exposed to a blue color LED light.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 3, 2019
    Assignee: eLux, Inc.
    Inventor: Alexey Koposov
  • Patent number: 10377944
    Abstract: Surface-modified nanoparticles are produced by associating ligand interactive agents with the surface of a nanoparticle. The ligand interactive agents are bound to surface modifying ligands that are tailored to impart particular solubility and/or compatibility properties. The ligand interactive agents are crosslinked via a linking/crosslinking agent, such as hexamethoxymethylmelamine or a derivative thereof. The linking/crosslinking agent may provide a binding site for binding the surface modifying ligands to the ligand interactive agents.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Nanoco Technologies Ltd.
    Inventor: Imad Naasani
  • Patent number: 10350583
    Abstract: The present disclosure relates to a method that includes heating a mixture that includes a metal phenylphosphine-containing precursor that includes at least one of Mo(PPh3)2(CO)4, Pd(PPh3)4, Ru(PPh3)3Cl2, Ru(PPh3)2(CO)2Cl2, Co(PPh3)(CO)2(NO), and/or Rh(PPh3)2(CO)Cl, a surfactant, and a solvent. The heating is to a target temperature to form a heated mixture containing a metal phosphide nanoparticle that includes at least one of MoP, Ru2P, Co2P, Rh2P, and/or Pd3P, and the metal phosphide nanoparticle is not hollow.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 16, 2019
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Susan Ellen Habas, Jun Wang, Daniel A. Ruddy, Frederick Raymond Gabriel Baddour, Joshua Schaidle
  • Patent number: 10340427
    Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: July 2, 2019
    Assignee: Lumileds LLC
    Inventors: Patrick John Baesjou, Stefan Willi Julius Gruhlke, Roelof Koole, Johannes Franciscus Maria Cillessen
  • Patent number: 10316248
    Abstract: The present invention relates to a method for producing a hexafluoromanganate(IV), said method being characterized by comprising: inserting an anode and a cathode into a reaction solution that contains a compound containing manganese having an atomic valence of less than 4 and/or manganese having an atomic valence of more than 4 and hydrogen fluoride; and then applying an electric current having an electric current density of 100 to 1000 A/m2 between the anode and the cathode. According to the present invention, it becomes possible to produce a hexafluoromanganate(IV) in which the content ratio of manganese having an atomic valence of 4 is high and the contamination with oxygen is reduced and which has high purity. When a complex fluoride red phosphor is produced using the hexafluoromanganate(IV) as a raw material, the phosphor produced has high luminescence properties, particularly high internal quantum efficiency.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 11, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masami Kaneyoshi, Masatoshi Ishii
  • Patent number: 10312423
    Abstract: A light-emitting device includes a light-emitting element, a wavelength converting layer and a light-adjusting layer. The light-emitting element has a first upper surface, a bottom surface, and a lateral surface between the first upper surface and the bottom surface. The wavelength converting layer includes a plurality of wavelength converting particles, and has a second upper surface on the first upper surface. The light-adjusting layer surrounds the lateral surface and has a first composition or a second composition. The first composition includes a first binder and a plurality of first light-diffusing particles. The second composition includes a second binder, a plurality of second light-diffusing particles, and a plurality of light-scattering particles.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: June 4, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Ching-Tai Cheng, Lung-Kuan Lai, Ju-Lien Kuo, Chun-Hua Shih, Hsuan-Tzu Peng, Yih-Hua Renn
  • Patent number: 10305009
    Abstract: A semiconductor light emitting device includes semiconductor light source, a resin package surrounding the semiconductor light source, and a lead fixed to the resin package. The lead is provided with a die bonding pad for bonding the semiconductor light source, and with an exposed surface opposite to the die bonding pad The exposed surface is surrounded by the resin package in the in-plane direction of the exposed surface.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 28, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Masahiko Kobayakawa, Kazuhiro Mireba, Shintaro Yasuda, Junichi Itai, Taisuke Okada
  • Patent number: 10301541
    Abstract: A fluoride phosphor includes fluoride particles represented by AxMFy:Mnz4+ where A is at least one selected from lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs), M is at least one selected from silicon (Si), titanium (Ti), zirconium (Zr), hafnium (Hf), germanium (Ge) and tin (Sn), a compositional ratio x of A satisfies 2?x?3, and a compositional ratio y of F satisfies 4?y?7; and an organic material physically adsorbed onto surfaces of the fluoride particles to allow the fluoride particles to have hydrophobicity. The fluoride particles have a concentration of Mn4+ gradually reduced from respective centers to respective surfaces of the fluoride particles.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Won Park, Woon Seok Kim, Tae Hoon Kim, Ji Ho You, Chul Soo Yoon
  • Patent number: 10246638
    Abstract: A device and associated method are provided for a light emitting diode device (LED) with suppressed quantum dot (QD) photobrightening. The QD surfaces, with a maximum cross-sectional dimension of 10 nanometers, are treated with a solution including a multi-valent cation salt. In response to heating the solution, multi-valent cations become attached to the surface of the QD nanocrystals, forming treated QDs that are deposited overlying a top surface of an LED. The LED device emits a non-varying intensity of first wavelength light in the visible spectrum from the treated QDs, when subjected to a continuous exposure of a second wavelength of LED light having an intensity of greater than 50 watts per square centimeter. For example, blue, green, or red color light may be emitted when exposed to LED light in the ultraviolet (UV) spectrum, or a green or red color light when exposed to a blue color LED light.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 2, 2019
    Assignee: eLux, Inc.
    Inventor: Alexey Koposov
  • Patent number: 10246633
    Abstract: Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 2, 2019
    Assignee: Nanoco Technologies Ltd.
    Inventors: Amilcar Pillay Narrainen, Cong-Duan Vo, Imad Naasani, Abu Mohammad Imroz Ali
  • Patent number: 10246637
    Abstract: A method for preparing a core-shell nanocrystal can include mixing an M-containing precursor solution, an X-containing precursor solution, and an acid or alcohol in an inert atmosphere at a first temperature to form a reaction mixture; maintaining the reaction mixture at the first temperature to grow the MX core of the nanocrystal; raising the temperature of the reaction mixture to a second temperature; and maintaining the reaction mixture at the second temperature to grow a shell of the nanocrystal.
    Type: Grant
    Filed: May 7, 2016
    Date of Patent: April 2, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Zhengtao Deng, Tian Ming, He Dong, Aishuang Xiang, Jing Kong
  • Patent number: 10191060
    Abstract: The present invention provides, among other aspects, functionalized chromophoric polymer dots comprising a hydrophobic core and a hydrophilic cap, and bioconjugates thereof. Also provided are improved methods for preparing functionalized chromophoric polymer dots. Methods for in vivo imaging and molecular labeling are also disclosed.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: January 29, 2019
    Assignees: University of Washington, Clemson Univeristy
    Inventors: Daniel T. Chiu, Changfeng Wu, Jason McNeill, Jiangbo Yu
  • Patent number: 10174886
    Abstract: A light emitting device includes a light source and a wavelength converter that includes a resin including a constitutional unit that includes an ionic liquid or a derivative of the ionic liquid, and a semiconductor nanoparticle phosphor included in the resin and provided on at least a portion of the light source. A wavelength converter includes a resin including a constitutional unit that includes an ionic liquid or a derivative of the ionic liquid, and a semiconductor nanoparticle phosphor included in the resin and emitting fluorescence upon receiving excitation light. A light emitting device includes the wavelength converter and a light source emitting excitation light to the wavelength converter, which is provided separately from the wavelength converter.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 8, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE AND TECHNOLOGY
    Inventors: Tatsuya Ryohwa, Mami Morishita, Noriyuki Yamazumi, Makoto Izumi, Yasutaka Kuzumoto, Takuya Nakashima, Tsuyoshi Kawai
  • Patent number: 10132965
    Abstract: A refractive index device and method of making it include obtaining a glass structure comprising a plurality of nucleation sites. The glass structure is formed from a glass composition that comprises a first chemical component and a second chemical component. A crystal of the second chemical component has a different second refractive index from a first refractive index of the first chemical component. Each nucleation site defines where a crystal of the second chemical component can be grown. The method includes causing crystals of the second chemical component to grow in situ at a set of the plurality of nucleation sites in order to produce a spatial gradient of a refractive index in the glass structure.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 20, 2018
    Assignees: Lockheed Martin Corporation, The Penn State Research Foundation, Clemson University Research Foundation
    Inventors: Clara Rivero Baleine, Theresa S. Mayer, Jonathan David Musgraves, Kathleen Richardson, Peter Wachtel
  • Patent number: 10113109
    Abstract: The invention provides a luminescent material (10) comprising quantum dots (100), wherein the luminescent material (10) further comprises a capping agent (110) coordinating to the quantum dots (10), wherein the capping agent comprises MxOy(OH)zn, wherein M is selected from the group consisting of B, Al, P, S, V, Zn, Ga, Ge, As, Se, Nb, Mo, Cd, In, Sn, Sb, Te, Ta and W, wherein x?1, y+z?1, and wherein n indicates a positive or negative charge of the capping agent.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: October 30, 2018
    Assignee: Lumileds LLC
    Inventors: Stefan Willi Julius Gruhlke, Patrick John Baesjou
  • Patent number: 10103293
    Abstract: Methods of treating an emission spectrum of visible light emitted from a light emitting source, and resulting apparatus, are disclosed. The methods include obtaining the visible light emission spectrum emitted from the light emitting source and a desired visible light emission spectrum. The methods may also include determining at least one wavelength of the emission spectrum of the source with an irradiance or intensity that is less than that of the desired emission spectrum. The methods may include selecting at least one pigment that is effective in tuning the emission spectrum of the source by increasing the intensity or irradiance of the at least one wavelength. The methods may include applying the at least one pigment to the light emitting source to treat the emission spectrum emitted therefrom.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 16, 2018
    Inventor: Jan-Marie Spanard
  • Patent number: 10079356
    Abstract: The invention provides devices such as photovoltaic cells which are free of scaffold structure layers.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 18, 2018
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.
    Inventor: Lioz Etgar
  • Patent number: 10047288
    Abstract: The invention relates to an optical composite material composition, comprising: 0.1 wt % to 15 wt % of a luminescent material; 5 wt % to 30 wt % of a surfactant having at least two thiol groups; 30 wt % to 50 wt % of a first acrylate monomer; 15 wt % to 30 wt % of a second acrylate monomer; 5 wt % to 20 wt % of a cross-linker; and 1 wt % to 2 wt % of an initiator. The invention also provides an optical composite material prepared by the optical composite material composition.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 14, 2018
    Assignee: Unique Materials Co., Ltd.
    Inventors: Pi-Tai Chou, Chia-Chun Hsieh