Patents Examined by C. Melissa Koslow
  • Patent number: 11360222
    Abstract: The present invention provides for a composition comprising an inorganic scintillator comprising an optionally lanthanide-doped cesium barium halide, useful for detecting nuclear material.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: June 14, 2022
    Assignee: The Regents of the University of California
    Inventors: Ramesh B. Borade, Gregory A. Bizarri, Edith D. Bourret-Courchesne, Stephen E. Derenzo, Stephen M. Hanrahan, Zewu Yan, Anurag Chaudry, Andrew Canning
  • Patent number: 11352558
    Abstract: A quantum dot, and a composite and a display device including the quantum dot. The quantum dot comprises a semiconductor nanocrystal core comprising indium and phosphorous, a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell comprising zinc, selenium, and sulfur, wherein the quantum dot does not comprise cadmium wherein the quantum dot has a maximum photoluminescence peak in a green light wavelength region, and wherein in an ultraviolet-visible (UV-Vis) absorption spectrum of the quantum dot, a ratio A450/Afirst, of an absorption value at 450 nm to an absorption value at a first excitation peak is greater than or equal to about 0.7, and a valley depth (VD) defined by the following equation is greater than or equal to about 0.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gon Kim, Shin Ae Jun, Taek hoon Kim, Hyeyeon Yang, Nayoun Won, Jongmin Lee, Mi Hye Lim
  • Patent number: 11356768
    Abstract: The present disclosure provides an acoustic absorption material having a composite zeolite molecular sieve and a speaker using the acoustic absorption material, where the composite zeolite molecular sieve includes a first zeolite molecular sieve having a first micropore diameter and a second zeolite molecular sieve having a second micropore diameter, and the first micropore diameter is greater than the second micropore diameter, and the first zeolite molecular sieve is used as an adsorbent, and the second zeolite molecular sieve is used as a low-frequency enhancement material. In the present disclosure, a zeolite molecular sieve having a larger diameter is added as an adsorbent to a zeolite molecular sieve, to effectively absorb various volatile organic compounds (VOCs) in an application environment, thereby avoiding performance degradation or failure of the zeolite molecular sieve used as a low-frequency enhancement material.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 7, 2022
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hongshu Feng, Yanyan Jin
  • Patent number: 11352557
    Abstract: The present invention relates to a method for preparing a nanosized light emitting semiconductor material.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 7, 2022
    Assignee: Merck Patent GmbH
    Inventors: Artyom Semyonov, Ehud Shaviv
  • Patent number: 11357085
    Abstract: The absorbance or emission wavelength of composite materials comprising a transition metal doped shell disposed over a rare earth doped core and a functionalizable group on the surface of the transition metal doped shell can change upon subjection to a carboxylic acid. This method of changing the absorbance or emission wavelength of a composite material can be used to identify counterfeit currency using an ink comprising a composite material.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 7, 2022
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventor: James Anthony Dorman
  • Patent number: 11349064
    Abstract: A lead-free lithium doped potassium sodium niobate piezoelectric ceramic material in powdered form and having a single crystalline phase and uses thereof are described. Methods of making the said piezoelectric ceramic material are also described.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 31, 2022
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Redha Bella, Jesus Alfonso Caraveo Frescas, Ibrahim Al-Howaish, Nijesh K. James, Sybrand Van Der Zwaag, Jibran Khaliq, Wilhelm A. Groen
  • Patent number: 11345850
    Abstract: The present application discloses a composite and its preparation method and application. The composite includes silica-coated quantum dots and graphene nanosheets on the surface of the silica-coated quantum dots; wherein the silica-coated quantum dots include quantum dots and silica layer coated on the surface of the quantum dots. And the graphene nanosheets and the silica layer is bonded by (O—)3Si—R1—NHCO—R3—CONH—R2—Si(O—)3 or (O—)3Si—R4—SCH2CH2—R5—Si(O—)3, R1, R2, R4, R5 are respectively selected from a group consisting of a hydrocarbyl or a hydrocarbyl derivative, R3 is selected from a hydrocarbyl, a hydrocarbyl derivative, an aryl or an aryl derivative. The composite can further improve the stability of quantum dots without affecting the inherent optical properties of quantum dots, thereby improving luminous efficiency.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 31, 2022
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Zhiwen Nie, Yixing Yang
  • Patent number: 11348711
    Abstract: The invention provides a core-shell particle which can provide, by being calcinated, epsilon type iron oxide-based compound particles that have a small coefficient of variation of primary particle diameter and show excellent SNR and running durability when employed in a magnetic recording medium as well as applications thereof. The core-shell particle includes: a core including at least one iron oxide selected from Fe2O3 or Fe3O4, or iron oxyhydroxide; and a shell that coats the core, the shell including a polycondensate of a metal alkoxide and a metal element other than iron, as well as applications thereof.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 31, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Kenji Naoi, Masashi Shirata, Takashi Fujimoto
  • Patent number: 11338069
    Abstract: A composition for coating a medical device and a coated medical device are provided. The composition includes a polymeric matrix having non-toxic quantum dots or a fluorophore or both. The polymeric matrix contains the quantum dots or fluorophore and binds as a coating to the medical device. Coated medical devices can be readily identified within or outside of a body and in open or laparoscopically surgeries, greatly reducing or eliminating the risk of a retained foreign object.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: May 24, 2022
    Assignee: The Regents of the Unversity of California
    Inventors: Jian Yang, James Wang, Christopher Barback, Erin Ward, Natalie Mendez, Sarah Blair, Andrew C. Kummel, William C. Trogler, Tsai W. Sung
  • Patent number: 11332666
    Abstract: A quantum dot including a nanoparticle template including a first semiconductor nanocrystal including a Group II-VI compound, a quantum well including a second semiconductor nanocrystal disposed on the nanoparticle template, the second semiconductor nanocrystal including a Group IIIA metal excluding aluminum and a Group V element; and a shell comprising a third semiconductor nanocrystal disposed on the quantum well, the third semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dot does not include cadmium, a band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the first semiconductor nanocrystal, the band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the third semiconductor nanocrystal, and the quantum dot includes an additional metal including an alkali metal, an alkaline earth metal, aluminum, iron, cobalt, nickel, copper, zinc, or a combination thereof.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 17, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jooyeon Ahn, Jongmin Lee, Taekhoon Kim, Shin Ae Jun, Tae Gon Kim, Garam Park
  • Patent number: 11332665
    Abstract: Disclosed are a phosphors, a preparation method thereof and a white LED. The phosphors with a chemical formula being ?-Ba3Y1-x(BO3)3:xDy3+ is obtained by doping Dy3+ and is a single-matrix phosphors which can be excited by near-ultraviolet light to emit white light.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: May 17, 2022
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Shaojun Sun, Yajiao Zhang, Guiguang Hu, Junxiang Lu, Yanfei Chi, Xia Chen
  • Patent number: 11335845
    Abstract: Methods for making metastable lead-free piezoelectric materials are presented herein.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 17, 2022
    Assignees: Alliance for Sustainable Energy, LLC, The Regents of the University of California, The Penn State Research Foundation
    Inventors: Lauren Marie Garten, David Samuel Ginley, Kristin Aslaug Ceder-Persson, Shyam Sundar Dwaraknath, Susan Trolier-McKinstry
  • Patent number: 11326095
    Abstract: Barium titanium particles, a method of preparing the same, and a display panel are disclosed. The method includes steps of mixing a barium source precursor and a titanium source precursor with an alkaline solution to obtain a to-be-reacted mixture solution, wherein the barium source precursor is selected from barium enoate; and reacting the to-be-reacted mixture solution under a first condition for a first time, and then isolating and purifying to obtain the barium titanium particles.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: May 10, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xiaowei Sun, Kai Wang, Miao Zhou, Hongcheng Yang, Pai Liu, Bing Xu, Lixuan Chen, Dongze Li
  • Patent number: 11326099
    Abstract: A scintillator for positron emission tomography is provided. The scintillator includes a garnet compound of a formula of A3B2C3O12 and an activator ion consisting of cerium. A3 is A2X. X consists of at least one lanthanide element. A2 is selected from the group consisting of (i), (ii), (iii), and any combination thereof, wherein (i) consists of at least one lanthanide element, (ii) consists of at least one group I element selected from the group consisting of Na and K, and (iii) consists of at least one group II element selected from the group consisting of Ca, Sr, and Ba. B2 consists of Sn, Ti, Hf, Zr, and any combination thereof. C3 consists of Al, Ga, Li, and any combination thereof. The garnet compound is doped with the activator ion.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 10, 2022
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Alok Mani Srivastava, Sergei Ivanovich Dolinsky
  • Patent number: 11319486
    Abstract: A ceramic complex that has improved optical characteristics including luminous efficiency is provided. A method for producing a ceramic complex, including: preparing a molded body containing rare earth aluminum garnet fluorescent material, aluminum oxide, and lutetium oxide, and having a content of the rare earth aluminum garnet fluorescent material in a range of 15% by mass or more and 50% by mass or less, and a content of the lutetium oxide in a range of 0.2% by mass or more and 4.5% by mass or less, based on the total amount of the rare earth aluminum garnet fluorescent material, the aluminum oxide, and the lutetium oxide; and calcining the molded body in an air atmosphere to provide a ceramic complex having a relative density in a range of 90% or more and less than 100%.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 3, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Masaki Kondo, Shozo Taketomi, Takafumi Sumie, Seigo Sunagawa, Hirofumi Ooguri
  • Patent number: 11319485
    Abstract: This present disclosure provides group III-V quantum dots, method for preparing the same. The preparation method comprises: S1, mixing precursor(s) of group III element, a solvent, a surface activation agent, and seeds of group III-V quantum dots to obtain a mixed system; S2, heating the mixed system to a first temperature; and S3, adding precursor(s) of group V element to the mixed system of the first temperature to obtain group III-V quantum dots, wherein, the seed surface of the group III-V quantum dots has a carboxylate ligand, the surface activation agent is acetylacetone or a derivative of acetylacetone or a compound RCOOH with a carboxyl group, and the first temperature is between 120° C. and 200° C.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: May 3, 2022
    Assignees: Zhejiang University, Najing Technology Corporation Limited
    Inventors: Xiaogang Peng, Yang Li
  • Patent number: 11312904
    Abstract: A semiconductor nanocrystal particle represented by Chemical Formula 1 and having a full width at half maximum (FWHM) of less than or equal to about 30 nanometers (nm) in the emission wavelength spectrum is provided: AxA?(3+??x)D(2+?)E(9+?).??Chemical Formula 1 In Chemical Formula 1, A is a first metal including Rb, Cs, or a combination thereof, A? is an organic substance derived from an ammonium salt, an organic material derived from an organic ligand, or an organic material including a combination thereof, D is a second metal including Sb, Bi, or a combination thereof E is Cl, Br, I, or a combination thereof, 1<x?3, ?1<?<1, 3+??x>0, ?1<?<1, and ?1<?<1.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 26, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
    Inventors: Jihyun Min, Eun Joo Jang, Edward H. Sargent, Hyo Sook Jang, Makhsud I. Saidaminov, Sjoerd Hoogland, Ankit Jain, Andrew Johnston, Oleksandr Voznyy
  • Patent number: 11312900
    Abstract: A method for producing a nitride fluorescent material includes preparing fluorescent material core particles having a composition containing Sr, Ca, Eu, Al, Si, and N, in which, when a molar ratio of Al in the composition is 1, a molar ratio of Sr is in a range of 0.45 or more and 1.1 or less, a molar ratio of Ca is in a range of more than 0 and less than 0.55, a molar ratio of Eu is in a range of more than 0 and 0.033 or less, a total molar ratio of Sr, Ca, and Eu is 1.1 or less, a molar ratio of Si is in a range of 0.81 or more and 1.21 or less, and a molar ratio of N is in a range of 2.25 or more and 3.85 or less, subjecting them to a first heat treatment and a second heat treatment.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: April 26, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Hiroyuki Watanabe, Shigeyuki Suzuki, Shoji Hosokawa
  • Patent number: 11316078
    Abstract: An optical wavelength converter (1) is configured such that an optical wavelength conversion member (9) is bonded to a heat dissipation member (13) having superior heat dissipation property. Thus, heat generated by light incident on the optical wavelength conversion member (9) can be efficiently dissipated. Therefore, even when high-energy light is incident on the optical wavelength converter, temperature quenching is less likely to occur, and thus high fluorescence intensity can be maintained. An intermediate film (21) is disposed between a reflective film (19) and a bonding portion (15). The presence of the intermediate film (21) improves the adhesion between the reflective film (19) and the bonding portion (15), thereby enhancing the heat dissipation from the optical wavelength conversion member (9) to the heat dissipation member (13). Thus, the temperature quenching of the optical wavelength conversion member (9) can be prevented, thereby enhancing fluorescence intensity.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: April 26, 2022
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Syohei Takaku, Yusuke Katsu, Tsuneyuki Ito, Yuki Shimura, Shinji Ban, Takeshi Mitsuoka
  • Patent number: 11312905
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures with fluoride passivation. The disclosure also provides methods of preparing nanostructures with fluoride and amine passivation. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 26, 2022
    Assignee: Nanosys, Inc.
    Inventors: Benjamin Newmeyer, Christian Ippen, Ruiqing Ma, Diego Barrera, Jesse Robert Manders