Patents Examined by Lynne Edmondson
  • Patent number: 10030196
    Abstract: The present invention provides a method for producing a fluoride fluorescent material, comprising: contacting a fluoride particles represented by the following general formula (I): K2[M1?aMn4+aF6]??(I) wherein M is at least one member selected from the group consisting of elements belonging to Groups 4 and 14 of the Periodic Table, and a satisfies the relationship: 0<a<0.2; with a solution containing alkaline earth metal ions in the presence of a reducing agent to form an alkaline earth metal fluoride on the surface of the fluoride particles.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 24, 2018
    Assignee: NICHIA CORPORATION
    Inventor: Tomokazu Yoshida
  • Patent number: 10023795
    Abstract: Embodiments of the invention provide a ceramic composites and synthesis methods that include providing a plurality of nanoparticles with at least one first rare-earth single-crystal compound, and mixing the plurality of nanoparticles with at least one ceramic material and at least one ceramic binder including at least one solvent. The method further includes preparing a ceramic green-body from the mixture, and sintering the ceramic green-body to form a ceramic composite of a polycrystalline ceramic with a plurality of embedded single-crystal nanorods. The embedded single-crystal nanorods include at least one second rare-earth single crystal compound. The at least one second rare-earth single crystal compound can include or be derived from the at least one first rare-earth single crystal compound.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 17, 2018
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventor: Cun-Zheng Ning
  • Patent number: 10020442
    Abstract: The present invention relates to a ceramic comprising (or consisting essentially of) a solid solution containing Bi, K, Ti and Fe (and optionally Pb) which exhibits piezoelectric behavior.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 10, 2018
    Assignee: Ionix Advanced Technologies Limited
    Inventors: Andrew John Bell, Timothy Comyn
  • Patent number: 9997289
    Abstract: Provided is a magnetic material including a plurality of flat particles containing a magnetic metal, and a matrix phase disposed around the flat particles and having higher electrical resistance than the flat particles. In a cross-section of the magnetic material, the aspect ratio of the flat particles is 10 or higher. If the major axis of one of the flat particles is designated as L and the length of a straight line connecting two endpoints of the flat particle is designated as W, the proportion of the area surrounded by the outer peripheries of parts in which flat particles satisfying the relationship: W ?0.95×L are continuously laminated, is 10% or more of the cross-section.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: June 12, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoko Eguchi, Tomohiro Suetsuna, Koichi Harada, Toshihide Takahashi, Seiichi Suenaga
  • Patent number: 9982190
    Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4??I includes gradually adding a first solution to a second solution gradually discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant; 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. The first solution includes a source of M and HF and the second solution includes a source of Mn to a reactor in the presence of a source of A.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 29, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: James Edward Murphy, Srinivas Prasad Sista
  • Patent number: 9976080
    Abstract: An inorganic oxide has a composition represented by General formula: M2LnX2(AlO4)3 (where M includes Ca, Ln includes Eu, and X includes at least either one of Zr and Hf). Then, a crystal structure of the inorganic oxide is a garnet-type structure. Eu3+ in the inorganic oxide emits a plurality of bright line-like fluorescent components, and a principal bright line of the fluorescent component is present within a wavelength range of 600 nm or more to less than 628 nm. Moreover, a maximum height of the bright line present within a wavelength range of 700 nm or more to less than 720 nm is less than 60% of a maximum height of the principal bright line. A phosphor composed of the inorganic oxide can emit narrowband red light with good color purity.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 22, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shozo Oshio, Natsuki Sato
  • Patent number: 9963632
    Abstract: A quantum dot-resin nanocomposite including a nanoparticle including a curable resin and a plurality of quantum dots contacting the nanoparticle. Also, a method of preparing the nanocomposite, and a molded article including the nanocomposite.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 8, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Haeng Deog Koh, Hyun A Kang, Eun Joo Jang, Na Youn Won
  • Patent number: 9954161
    Abstract: A piezoelectric material contains a perovskite-type metal oxide represented by general formula (1) as a main component: (Ba1?x?yCaxSny)?(Ti1?zZrz)O3??General formula (1) (where 0.020?x?0.200, 0.020?y?0.200, 0.050<z?0.085, 0.986???1.100).
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Kubota, Hidenori Tanaka, Takayuki Watanabe, Shunsuke Murakami
  • Patent number: 9950949
    Abstract: The invention relates to a conversion material, in particular for a white or colored light source comprising a semiconductor light source as primary light source, comprising a matrix glass that, as bulk material, for a thickness d of about 1 mm, has a pure transmission ?i of greater than 80% in the wavelength region from 350 to 800 nm and in the region in which the primary light source emits light, wherein the sum of transmission and reflection of the sintered matrix glass without luminophore is at least greater than 80% in the spectral region from 350 nm to 800 nm and in the spectral region in which the primary light source emits light.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: April 24, 2018
    Assignee: SCHOTT AG
    Inventors: Rainer Liebald, Claudia Stolz, Peter Brix, Simone Monika Ritter, Peter Nass, Dieter Goedeke, Sabine Pichler-Wilhelm, Sabrina Wimmer
  • Patent number: 9914874
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a malonic acid derivative attached to the core/shell nanoparticle outer surface, wherein the malonic acid derivative (prior to attachment to the nanoparticle) has the following Formula (I): wherein: R1 is a linear or branched alkyl group having 8 or more carbon atoms, or a linear or branched alkylene group having 8 or more carbon atoms (wherein it is understood that C—R1 is a single or double bond); R2 is H or a linear or branched alkyl group having 1 or more carbon atoms; and x is 0 (resulting in C?R1) or 1 (resulting in C—R1); and wherein the malonic acid derivative is liquid at room temperature (prior to attachment to the nanoparticle).
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: March 13, 2018
    Assignee: 3M Innovative Properties Company
    Inventor: Dennis E. Vogel
  • Patent number: 9905749
    Abstract: The present invention aims to provide a piezoelectric composition which is free of lead based compounds and is represented by the following formula (1), (Bi0.5xNa0.5xBa0.7y+zCa0.3y)a(Tix+y+0.8zHf0.2z)O3 (1), wherein, x, y, z and a in formula (1) meets the following conditions, 0.70x0.90, 0.02y0.28, 0.02z0.28, 0.90a1.10 and x+y+z=1. The present invention also provides a piezoelectric device having the piezoelectric composition mentioned above.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 27, 2018
    Assignee: TDK CORPORATION
    Inventor: Hiroki Katoh
  • Patent number: 9890328
    Abstract: A lighting apparatus that includes a light source and a phosphor composition radiationally coupled to the light source is presented. The phosphor composition includes a first phosphor that includes a phase of general formula (I): L3ZO4(Br2-nXn):Eu2+ wherein 0?n?1; L is Zn, Mg, Ca, Sr, Ba, or combinations thereof; Z is Si, Ge, or a combination thereof; and X is F, Cl, I, or combinations thereof.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 13, 2018
    Assignee: General Electric Company
    Inventors: Samuel Joseph Camardello, Alok Mani Srivastava, Fangming Du, Holly Ann Comanzo, William Winder Beers, William Erwin Cohen
  • Patent number: 9887344
    Abstract: Provided is a piezoelectric element in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, the piezoelectric layer being formed of composite oxide having a perovskite structure which contains at least Pb, Nb, and Ti, in which the piezoelectric layer has a tetragonal crystal structure, the crystal is oriented to {100} against the substrate, and regions are mixed in a crystal lattice, each region including a (100) plane and a (001) plane which are orthogonal to a stacking direction, and the composite oxide of the piezoelectric layer is represented by the following general expression.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: February 6, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiro Itayama, Takayuki Yonemura
  • Patent number: 9884991
    Abstract: A phosphor is disclosed, including a formula of A3-aCeaQ5-eEeO12. The A, the Q and the E independently comprise elements aluminum (Al), gallium (Ga), indium (In), scandium (Sc), yttrium (Y), lanthanum (La), gadolinium (Gd), terbium (Tb), lutetium (Lu), or a combination thereof. Ce is cerium. O is oxygen. 0<a?3. 0?e?5. A diameter distribution span of the phosphor is less than 0.7.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: February 6, 2018
    Assignee: CHI MEI CORPORATION
    Inventors: Szu-Chun Yu, Jen-Shrong Uen
  • Patent number: 9881722
    Abstract: A composite magnetic body includes metal magnetic powder formed of metal magnetic particles and an insulator impregnated into at least a part of voids among the metal magnetic particles. On a cumulative curve of widths of the voids among the metal magnetic particles, a void width at which a cumulative distribution is 50% is equal to or smaller than 3 ?m, and a void width at which the cumulative distribution is 95% is equal to or greater than 4 ?m.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 30, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shota Nishio, Takeshi Takahashi
  • Patent number: 9868898
    Abstract: Processes for preparing color stable Mn4+ doped phosphors include contacting a phosphor of formula I with a fluorine-containing oxidizing agent in gaseous form at temperature ?225° C. to form the color stable Mn4+ doped phosphor A x ? MF y ? : ? Mn 4 + I wherein A is independently at each occurrence Li, Na, K, Rb, Cs, or a combination thereof; M is independently at each occurrence Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the MFy ion; and y is 5, 6 or 7. In another aspect, the processes include contacting a phosphor of formula I at an elevated temperature with an oxidizing agent comprising a C1-C4 fluorocarbon, to form the color stable Mn4+ doped phosphor.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 16, 2018
    Assignee: General Electric Company
    Inventors: James Edward Murphy, Fangming Du, Anant Achyut Setlur
  • Patent number: 9862831
    Abstract: A method of assembling superparamagnetic colloids into ordered structures with magnetically tunable photonic properties in nonpolar solvents by establishing long-range electrostatic repulsive forces using charge control agents. Reverse micelles resulted from the introduction of charge control agents such as AOT molecules can enhance the charge separation on the surfaces of n-octadecyltrimethoxysilane modified Fe3O4@SiO2 particles. The significantly improved long-range electrostatic repulsion can counterbalance the magnetically induced attraction and therefore allow ordering of superparamagnetic colloids in nonpolar solvents. This system possesses fast and fully reversible optical response to the external magnetic fields, long-term stability in performance, and good diffraction intensity.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: January 9, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yadong Yin, Jianping Ge
  • Patent number: 9856416
    Abstract: The present invention provides a phosphor, including a constituent having the formula CapSrqMmAaBbOtNn:Zr, in which M selected from the group consisting of magnesium, barium, beryllium and zinc; A selected from the group consisting of aluminum, gallium, indium, scandium, yttrium, lanthanum, gadolinium and lutetium; B selected from the group consisting of silicon, germanium, tin, titanium, zirconium and hafnium; Z selected from the group consisting of europium and cerium; 0<p<1; 0?q<1; 0?m<1; 0?t?0.3; 0.00001?r?0.1; a=1, 0.8?b?1.2; and 2.7?n?3.1. Moreover, the normalized dissolved content of calcium of the phosphor is 1˜25 ppm, thereby obtaining a phosphor of high brilliance in the 600˜680 nm region. In addition, the present invention at the same time provides a high brilliance light emitting device.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: January 2, 2018
    Assignee: Chi-Mei Corporation
    Inventors: Yuan-Ren Juang, Jen-Shrong Uen, Chih-Lung Lin
  • Patent number: 9850131
    Abstract: Provided is a method for producing a phosphor, using a nitride raw material, that gives a high-reliability (Sr,Ca)AlSiN3-based nitride phosphor at a productivity higher than before. The method comprises a mixing step of mixing raw materials and a calcining step of calcining the mixture obtained in the mixing step and, in producing the phosphor having a crystalline structure substantially identical with that of (Sr,Ca)AlSiN3 crystal as the host crystal, a strontium nitride containing SrN, Sr2N, or the mixture thereof as the main crystalline phase, as determined by crystalline phase analysis by powder X-ray diffractometry, and having a nitrogen content of 5 to 12 mass % is used as part of the raw materials.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: December 26, 2017
    Assignee: DENKA COMPANY LIMITED
    Inventors: Ryozo Nonogaki, Masayoshi Ichikawa, Tomohiro Nomiyama, Yusuke Takeda
  • Patent number: 9850593
    Abstract: Quantum dots and methods of making quantum dots are provided.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wenhao Liu, Craig Breen