And Alkali Metal Or Alkaline Earth Metal Containing Patents (Class 423/594.2)
  • Patent number: 10344141
    Abstract: To solve the problem of providing a black iron oxide that can yield sufficient blackness, opacifying effect and covering ability even if it is only added in a small amount for use with cosmetic materials, the invention provides a black iron oxide with a high tinting strength having an octahedral shape, a specific surface in a range of 8.0 to 20.0 m2/g, and a particle surface coated with a layer containing one type or two or more types of inorganic compounds, wherein an L*value of a color on reduction is 31.0 or lower and a b*value of a color on reduction is 1.5 or lower, a production method thereof, and cosmetic materials that incorporate the same.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: July 9, 2019
    Assignee: TITAN KOGYO KABUSHIKI KAISHA
    Inventors: Akira Nakamura, Masayasu Morishita, Hiroaki Uchida
  • Patent number: 10128489
    Abstract: Compositions and methods of making are provided for surface modified electrodes and batteries comprising the same. The compositions may comprise a base composition having an active material capable of intercalating the metal ions during a discharge cycle and deintercalating the metal ions during a charge cycle, wherein the active material is selected from the group consisting of LiCoO2, LiMn2O4, Li2MnO3, LiNiO2, LiMn1.5Ni0.5O4, LiFePO4, Li2FePO4F, Li3CoNiMnO6, Li(LiaNixMnyCoz)O2, LiaMn1.5-bNi0.5-cMdO4-x, and mixtures thereof. The compositions may also comprise an annealed composition covering a portion of the base composition, formed by a reaction of the base composition in a reducing atmosphere. The methods of making comprise providing the base composition and annealing the base electrode in a reducing atmosphere.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: November 13, 2018
    Assignee: UT-BATTELLE, LLC
    Inventors: Mariappan Parans Paranthaman, Craig A. Bridges, Sukeun Yoon
  • Patent number: 9685657
    Abstract: A composite precursor represented by Formula 1, a composite prepared therefrom represented by Formula 2, a method of preparing a composite precursor and a composite, a positive electrode for lithium secondary battery including the same, and a lithium secondary battery employing the same. aMn3O4-bM(OH)2??Formula 1 wherein in Formula 1, 0<a?0.8, 0.2?b<1 and M is at least one metal selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron, (Fe), cobalt (Co), nickel (Ni), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B) aLi2MnO3-bLiyMO2??Formula 2 wherein in Formula 2, 0?a?0.6, 0.4?b?1 1.0?y?1.05, and M is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, and B.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: June 20, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seon-Young Kwon, Do-Hyung Park, Min-Han Kim, Ji-Hyun Kim, Joong-Ho Moon, Kyoung-Hyun Kim, Han-Eol Park, Yong-Chan You, Chang-Wook Kim
  • Patent number: 9321895
    Abstract: Magnesium hydroxide having a high aspect ratio, a production method thereof and a resin composition comprising the same. The method of producing the magnesium hydroxide having a long diameter (width) of not less than 0.5 ?m and aspect ratio of not less than 10, comprising the steps of: (A) adding an alkali to and coprecipitating it with a mixed aqueous solution of a water-soluble magnesium salt and a monovalent organic acid or a salt thereof, or (B) adding an alkali aqueous solution to and coprecipitating it with an aqueous solution of a water-soluble magnesium salt and adding a monovalent organic acid or a salt thereof to the resulting product; and (C) hydrothermally treating the obtained slurry at 100° C. or higher.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: April 26, 2016
    Assignees: KYOWA CHEMICAL INDUSTRY CO., LTD., SEA WATER CHEMICAL INSTITUTE, INC.
    Inventors: Shigeo Miyata, Hitoshi Manabe, Daisuke Kudo
  • Publication number: 20150140595
    Abstract: A set of paramagnetic particles synthesized by co-precipitation methods wherein an alkaline hydroxide solution is mixed with a metal salt solution. The alkaline hydroxide features ammonium hydroxide, potassium hydroxide, sodium hydroxide, or mixtures thereof. The metal salt solution features at least one ferrous salt and at least one tetravalent metal salt selected from Group 4 elements of the Periodic Table. The concentration of the ferrous salt is equal to or greater than the concentration of the tetravalent metal salt. The paramagnetic particles may be used for bioprocessing via magnetic fields. Bioprocessing, for example, may include purifying, concentrating, or detecting biomolecules of interest (e.g., nucleic acids, carbohydrates, peptides, proteins, other organic molecules, cells, organelles, microorganisms, viruses, etc.), or other magnetic field-based processes common to applications in separation science, diagnostics, molecular biology, protein chemistry, and clinical practice.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Inventor: Joseph Gerard UTERMOHLEN
  • Publication number: 20150125700
    Abstract: Provided is a method for producing Sr ferrite particles for sintered magnets, the method includes: a mixing step of mixing an iron compound, a strontium compound, and an alkali metal compound which includes at least one of K and Na as a constituent element and which does not include Cl and S as the constituent element to prepare a mixture; and a calcining step of firing the mixture at 850° C. to 1100° C. to obtain Sr ferrite particles in which an average particle size of primary particles is 0.2 to 1.0 ?m. In the mixing step, the alkali metal compound is mixed in such a manner that a total amount of K and Na becomes 0.03 to 1.05% by mass in terms of K2O and Na2O with respect to a total amount of a powder of the iron compound and a powder of the strontium compound.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 7, 2015
    Applicant: TDK Corporation
    Inventor: Hitoshi Taguchi
  • Patent number: 8968572
    Abstract: In a device and a process for purifying water which is contaminated with sulphate ions and heavy metal ions, the water is collected in a water reservoir and a substance having basic activity in water is fed to the water reservoir in such a manner that a precipitant having heavy metal ions is precipitated from the water, wherein at least a subquantity of water is taken off from the water reservoir and is separated into pure water which is substantially freed from sulphate ions and heavy metal ions and dirty water which is enriched with sulphate ions and heavy metal ions. The dirty water is at least in part recirculated to the water reservoir, as a result of which a concentration of sulphate ions in the water reservoir is achieved such that a precipitant having sulphate ions is precipitated from the water.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Riebensahm
  • Patent number: 8961921
    Abstract: A method for producing a ferrate solution by producing a ferrate intermediate material and then combining the intermediate material with a halogen or ozone solution.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: February 24, 2015
    Assignee: Florida Institute of Technology
    Inventor: Virender K. Sharma
  • Patent number: 8932545
    Abstract: A method is provided for the synthesis of a mesoporous lithium transition metal compound, the method comprising the steps of (i) reacting a lithium salt with one or more transition metal salts in the presence of a surfactant, the surfactant being present in an amount sufficient to form a liquid crystal phase in the reaction mixture (ii) heating the reaction mixture so as to form a sol-gel and (iii) removing the surfactant to leave a mesoporous product. The mesoporous product can be an oxide, a phosphate, a borate or a silicate and optionally, an additional phosphate, borate or silicate reagent can be added at step (i). The reaction mixture can comprise an optional chelating agent and preferably, the reaction conditions at steps (i) and (ii) are controlled so as to prevent destabilization of the liquid crystal phase. The invention is particularly suitable for producing mesoporous lithium cobalt oxide and lithium iron phosphate.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 13, 2015
    Assignee: Qinetiq Limited
    Inventors: Gary Owen Mepsted, Emmanuel Imasuen Eweka
  • Publication number: 20150010698
    Abstract: The method of manufacturing hexagonal ferrite magnetic particles comprises applying an adhering matter comprising a glass component and an alkaline earth metal to hexagonal ferrite magnetic particles, and subjecting the hexagonal ferrite magnetic particles to which the adhering matter has been applied to a heat treatment.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 8, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Yasushi HATTORI, Yoshinori TAMADA
  • Patent number: 8900537
    Abstract: A template-free reverse micelle (RM) based method is used to synthesize pyrochlore nanostructures having photocatalytic activity. In one embodiment, the method includes separately mixing together a first acid stabilized aqueous solution including pyrochlore precursor A and a second acid stabilized aqueous solution including pyrochlore precursor B with an organic solution including a surfactant to form an oil-in-water emulsion. Next, equimolar solutions of the first and second acid stabilized oil-in-water emulsions are mixed together. Then, the mixture of the first and second acid stabilized oil-in-water emulsion is treated with a base to produce a precipitate including pyrochlore precursors A and B. After which, the precipitate is dried to remove volatiles. The precipitate is then calcined in the presence of oxygen to form a pyrochlore nanostructure, such as a bismuth titanate (Bi2Ti2O7) pyrochlore nanorod. The method of synthesizing the pyrochlore nanorod is template-free.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 2, 2014
    Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno
    Inventors: Vaidyanathan Subramanian, Sankaran Murugesan
  • Patent number: 8901027
    Abstract: A method of forming a Fischer-Tropsch catalyst by providing at least one metal nitrate solution, combining each of the at least one metal nitrate solutions with a precipitating agent whereby at least one catalyst precipitate is formed, and incorporating a strong base during precipitation, subsequent precipitation, or both during and subsequent precipitation. Catalysts produced via the disclosed method are also provided.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: December 2, 2014
    Assignee: Res USA, LLC
    Inventors: Deena Ferdous, Belma Demirel
  • Patent number: 8889095
    Abstract: Provided is a method for stabilizing a size of a platinum hydroxide polymer capable of maintaining solution stability of a platinum hydroxide polymer in a solution. The method may include adding Zr ions to a solution containing a platinum hydroxide polymer at a Zr/Pt ratio of 1.0 to 40 in terms of molar concentration ratio.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: November 18, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Toyofumi Tsuda, Fumikazu Kimata, Kazuya Miura
  • Publication number: 20140326918
    Abstract: A system and method thereof are provided for multi-stage processing of one more precursor compounds into a battery material. The system includes a mist generator, a drying chamber, one or more gas-solid separators, and one or more in-line reaction modules comprised of one or more gas-solid feeders, one or more gas-solid separators, and one or more reactors. Various gas-solid mixtures are formed within the internal plenums of the drying chamber, the gas-solid feeders, and the reactors. In addition, heated air or gas is served as the energy source within the processing system and as the gas source for forming the gas-solid mixtures to facilitate reaction rate and uniformity of the reactions therein. Precursor compounds are continuously delivered into the processing system and processed in-line through the internal plenums of the drying chamber and the reaction modules into final reaction particles useful as a battery material.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 6, 2014
    Inventor: LIang-Yuh Chen
  • Publication number: 20140314658
    Abstract: The method of manufacturing magnetic particles, wherein the magnetic particles are magnetic particles for magnetic recording, and includes subjecting starting material magnetic particles to glass component-adhering treatment to be adhered with a glass component, and subjecting the magnetic particles after the glass component-adhering treatment to coercive force-reducing treatment with heating, to provide magnetic particles having lower coercive force than the starting material magnetic particles.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 23, 2014
    Applicant: FUJIFILM CORPORATION
    Inventor: Yasushi HATTORI
  • Patent number: 8758721
    Abstract: Embodiments and aspects of the present invention relate to an enhanced hexagonal ferrite magnetic material doped with an alkali metal. The material retains substantial magnetic permeability up to frequencies in the GHz range with low losses. The material may be used in high frequency applications in devices such as transformers, inductors, circulators, and absorbers.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: June 24, 2014
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael D. Hill
  • Patent number: 8758455
    Abstract: A method of producing a layered structure lithium mixed metal oxide, including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: June 24, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Cedric Pitteloud, Yoshinari Sawabe, Satoshi Shimano
  • Publication number: 20140170060
    Abstract: People are increasingly interested in use of potassium ferrate [K2FeO4, or abbreviated as Fe(VI)] for clean energy production (i.e., super-iron batteries), environmental protection, and anticancer drug development. This research is focused on development of a simple method for synthesis of stable solid Fe(VI) with an one-pot environmentally responsible method. The prepared Fe(VI) was characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD), and Mössbauer spectroscopy. All the characterization results indicate that Fe(VI) has its own characteristic morphology and crystal structure. Fe(VI) is very effective in removal of sulfide.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Inventor: Bo Fan
  • Publication number: 20140151595
    Abstract: The method of manufacturing hexagonal ferrite magnetic particles includes providing hexagonal ferrite magnetic particles by conducting calcination of particles comprising an iron salt and an alkaline earth metal salt to cause ferritization; and further includes preparing the particles comprising an iron salt and an alkaline earth metal salt by adhering a glass component, followed by the alkaline earth metal salt, to the iron salt; and conducting calcination of the particles prepared to form a calcined product in which hexagonal ferrite is detected as a principal component in X-ray diffraction analysis.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Yasushi HATTORI, Kazufumi OMURA
  • Publication number: 20140138571
    Abstract: The present invention provides a magnetoelectric material in which an electric property is capable of being controlled by a magnetic field or a magnetic property is capable of being controlled by an electric field, and a method of manufacturing the same. Particularly, the present invention provides a magnetoelectric material in which a distance between magnetic ions interacting with each other is controlled by using non-magnetic ions or alkaline earth metal ions, and a method of manufacturing the same.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Applicant: SNU R&DB FOUNDATION
    Inventors: Kee Hoon KIM, Sae Hwan CHUN, Yi Sheng CHAI, Kwang Woo SHIN
  • Patent number: 8728436
    Abstract: A cathode active material represented by the formula, LiFexPO4/C, wherein 0.9?x<1, preferably 0.96?x<1, which was obtained from carbon pre-coated off-stoichiometric FexPO4, wherein 0.9?x<1, preferably 0.96?x<1. The materials may be double-carbon-coated particles obtained by carbon coating a mixture of a lithium component and FexPO4/C sub-particles, wherein the FexPO4/C sub-particles may be obtained by carbon coating FexPO4.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: May 20, 2014
    Assignee: Hefei Guoxuan High-Tech Power Energy Co., Ltd.
    Inventors: Qian Wang, Dajun Liu, Xiaoming Xu, Long Zhang, Yu Zhang
  • Patent number: 8728342
    Abstract: An object of the present invention is to realize more effective intercalation and deintercalation of lithium ions in a cathode active material. The preset invention provides a cathode active material plate-like particle for a lithium secondary battery, the particle having a layered rock salt structure, wherein lithium-intercalation/deintercalation-plane-oriented grains (primary crystal grains whose (003) plane is oriented so as to intersect a plate surface of the plate-like particle) are present in a dispersed state among numerous (003)-plane-oriented grains (primary crystal grains whose (003) plane is oriented in parallel with the plate surface of the plate-like particle).
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: May 20, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Shohei Yokoyama, Nobuyuki Kobayashi, Tsutomu Nanataki, Kouichi Kondou
  • Patent number: 8709655
    Abstract: Disclosed is a positive electrode active material for nonaqueous electrolyte secondary batteries which contains a complex oxide mainly containing sodium, nickel and a tetravalent metal while having a hexagonal structure. This positive electrode active material enables to obtain a nonaqueous electrolyte secondary battery with high operating voltage. The complex oxide is preferably expressed as Na[Na(1/3-2x/3)Ni(x-y)M(2/3-x/3-y)A2y]O2 (wherein M represents one or more tetravalent metals, A represents one or more trivalent metals, 0<x?0.5, 0?y<1/6, and x>y).
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: April 29, 2014
    Assignees: Sumitomo Chemical Company, Limited, Kyushu University, National University Corporation
    Inventors: Shigeto Okada, Jun-ichi Yamaki, Yusuke Takahashi, Kenji Nakane
  • Publication number: 20140113195
    Abstract: Disclosed is a negative electrode active material for lithium-ion secondary batteries which contributes to high capacity, high energy density, and safety and a lithium-ion secondary battery provided with the negative electrode active material. The negative electrode active material is an oxide containing Li and Fe and having crystalline and amorphous phases of LiFeO2 such that there is a specific ratio ranging from 13.2 to 100 between peak value of X-ray diffraction due to the plane of the crystalline phase and peak value of X-ray diffraction due to the amorphous phase. The negative electrode active material is produced by preparing a mixture of LiOH.H2O and FeOOH and heating it together with distilled water in an autoclave at 180 to 220° C. for 10 to 20 hours, thereby giving an oxide having the crystalline and amorphous phases of LiFeO2 or an oxide having the crystalline and amorphous phases of LiFeO2 and LiFe5O8.
    Type: Application
    Filed: June 13, 2011
    Publication date: April 24, 2014
    Inventor: Kazushige Kohno
  • Patent number: 8673261
    Abstract: The present invention relates to a process for preparing magnetite (Fe3O4) or derivatives thereof, comprising the steps: a) preparing an aqueous solution A of a Fe(III) salt, b) preparing an aqueous solution B of an iodide salt, c) mixing solutions A and B to obtain a first precipitate, d) separating the first precipitate to obtain a filtrate, e) hydrolyzing the filtrate obtained in step d) by adjusting the pH to about 8.5-9 or above, preferably 9, in order to obtain a second precipitate, and f) separating the second precipitate.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 18, 2014
    Assignee: King Saud University
    Inventor: Mutasim Ibrahim Khalil
  • Patent number: 8663847
    Abstract: It is an object of the present invention to provide a positive electrode material having a large ratio of the discharge capacity around 4 V to the total discharge capacity including the discharge capacity at 4V or lower while making the discharge capacity around 4 V sufficient, for the purpose of providing a lithium secondary battery using a lithium transition metal phosphate compound excellent in thermal stability, utilizing the discharge potential around 4V (vs. Li/Li+) that is higher than the discharge potential of LiFePO4, and being advantageous with respect to the detection of the end of discharge state, and a lithium secondary battery using the same. The present invention uses a positive active material for a lithium secondary battery containing a lithium transition metal phosphate compound represented by LiMn1-x-yFexCoyPO4(0.1?x?0.2, 0<y?0.2).
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 4, 2014
    Assignee: GS Yuasa International Ltd.
    Inventors: Yuta Kashiwa, Mariko Kohmoto, Toru Tabuchi, Tokuo Inamasu, Toshiyuki Nukuda
  • Publication number: 20140054491
    Abstract: A ferrite powder according to the present invention includes a laminar structure exhibiting a state where W-type ferrite phases are laminated in an easy direction of magnetization, the W-type ferrite phases including a compound expressed by AM2Fe16O27, where A, M, Fe, and O represent a first metal element (Sr, Ba, Ca, Pb, etc), a second metal element (Fe, Zn, Cu, Co, Mn, Ni, etc), iron, and oxygen, respectively. This ferrite particle is obtained through: a shape forming step that shapes a mixed powder in a magnetic field to obtain a compact, the mixed powder including for example an M-type ferrite particle including a compound expressed by AFe12O19 and a spinel-type ferrite particle (S-type ferrite particle) including a compound expressed by MFe2O4; a calcination step that calcines the compact to obtain a calcined substance; and a milling step that mills the calcined substance.
    Type: Application
    Filed: March 27, 2012
    Publication date: February 27, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yuji Kaneko, Seishi Utsuno
  • Publication number: 20140008568
    Abstract: Processes and compositions for multi-transition metal-containing cathode materials for lithium ion batteries. Processes encompass providing a composition which can be a mixture of molecular precursor compounds having the formulas [LiM(x+)(OR)1+x] and [Li2M(x+)(OR)2+x]. The metal atoms, M, can be Ni, V, Co, Mn, or Fe, and the —OR groups can be alkoxy, aryloxy, heteroaryloxy, alkenyloxy, siloxy, phosphinate, phosphonate, and phosphate. The compositions can be converted and annealed to provide cathode materials.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Inventors: Kyle L. Fujdala, Zhongliang Zhu, Paul R. Markoff Johnson
  • Publication number: 20140011086
    Abstract: Lithium-iron molecular precursor compounds, compositions and processes for making a cathode for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make stoichiometric cathode materials with solution-based processes. The cathode material can be, for example, a lithium iron oxide, a lithium iron phosphate, or a lithium iron silicate. Cathodes can be made as bulk material in a solid form or in solution, or in various forms including thin films.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Inventors: Kyle L. Fujdala, Zhongliang Zhu, Paul R. Markoff Johnson
  • Publication number: 20130337369
    Abstract: The present invention relates to a mixed metal oxide exhibiting perovskite-type structural characteristics in which there are cations of Ba, Ca or Sr, a rare earth metal and Fe, Cr, Cu, Co or Mn present in three different coordination sites or a composition thereof, to a cathode composed of the mixed metal oxide or composition thereof and to a solid oxide fuel cell comprising the cathode.
    Type: Application
    Filed: November 14, 2011
    Publication date: December 19, 2013
    Applicant: THE UNIVERSITY OF LIVERPOOL
    Inventors: Matthew Rosseinsky, John Claridge, Antoine Demont, Ruth Sayers
  • Patent number: 8609062
    Abstract: Processing techniques for forming a textured hexagonal ferrite materials such as Z-phase barium cobalt ferrite Ba3Co2Fe24O41 (Co2Z) to enhance the resonant frequency and other magnetic properties of the material for high frequency applications are provided. The processing techniques include magnetic texturing by using fine grain particles and sintering the material at a lower temperature than conventional firing temperatures to inhibit reduction of iron. The processing techniques also may include aligning M-phase (BaFe12O19 uniaxial magnetization) with non-magnetic additives in a static magnetic field and reacting with BaO source and CoO to form Z-phase (Ba3Me2Fe24O42). In some implementations, processing techniques includes aligning Co2Z phase (planar magnetization) with magnetic texturing occurring in a rotating magnetic field.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 17, 2013
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael D. Hill
  • Patent number: 8597536
    Abstract: Disclosed is a non-lead perovskite oxide having a low Curie temperature and high ferroelectricity represented by General Formula (P) given below. (Bix1,Bax2,Xx3)(Fey1,Tiy2,Mny3)O3??(P) (where, Bi and Ba are A-site elements, X is one kind or a plurality of kinds of A-site elements, other than Pb and Ba, with an average ion valence of 2. Fe, Ti, and Mn are B-site elements. O is oxygen. 0<x1+X2<1.0, 0<x3<1.0, 0<y1+y2<1.0, 0?y3<1.0, 0<x1, 0<x2, 0<y1, 0<y2. The standard molar ratios among A-site elements, B-site elements, and oxygen are 1:1:3, but the molar ratios among them may deviate from the standard ratios within a range in which a perovskite structure may be formed.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 3, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Tsutomu Sasaki, Yukio Sakashita
  • Patent number: 8591860
    Abstract: A method for producing a lithium mixed metal oxide, which includes mixing a lithium compound, metallic Ni or a compound thereof, and one or more transition metals selected from the group consisting of Mn, Co, Ti, Cr and Fe or a compound thereof; and calcining the obtained raw material mixture under an atmosphere of the concentration of carbon dioxide of from 1% by volume to 15% by volume at 630° C. or higher.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: November 26, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshihiro Kawakami, Ryuji Matsushita, Satoshi Shimano
  • Patent number: 8524190
    Abstract: Embodiments and aspects of the present invention relate to an enhanced hexagonal ferrite magnetic material doped with an alkali metal. The material retains substantial magnetic permeability up to frequencies in the GHz range with low losses. The material may be used in high frequency applications in devices such as transformers, inductors, circulators, and absorbers.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 3, 2013
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael Hill
  • Publication number: 20130200009
    Abstract: The present invention is a new, easy method for preparing stable solid Fe6+—Fe3+ agents in a fixed bed reactor by using O3 and FeOOH along with KOH with conversion efficiencies of approximately 27%.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 8, 2013
    Applicant: THE UNIVERSITY OF WYOMING
    Inventor: Maohong Fan
  • Publication number: 20130130090
    Abstract: Provided are a transition metal mixed hydroxide comprising an alkali metal other than Li, SO4 and a transition metal element, wherein the molar ratio of the molar content of the alkali metal to the molar content of the SO4 is not less than 0.05 and less than 2, and a lithium mixed metal oxide obtained by calcining a mixture of the transition metal mixed hydroxide and a lithium compound by maintaining the mixture at a temperature of 650 to 100000.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 23, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Takamori, Hiroshi Inukai, Taiga Obayashi
  • Publication number: 20130122372
    Abstract: Provided is spinel-type lithium transition metal oxide (LMO) used as a positive electrode active material for lithium battery, said LMO being capable of simultaneously achieving all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics. The disclosed is spinel-type lithium transition metal oxide including, besides Li and Mn, one or more elements selected from a group consisting of Mg, Ti, Ni, Co, and Fe, and having crystallite size of between 200 nm and 1000 nm and strain of 0.0900 or less. Because the crystallite size is markedly large, oxygen deficiency is markedly little, and the structure is strong, when the LMO is used as a positive electrode active material for lithium secondary batteries, all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics can be achieved simultaneously.
    Type: Application
    Filed: July 13, 2011
    Publication date: May 16, 2013
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Shinya Kagei, Keisuke Miyanohara, Yoshimi Hata, Yasuhiro Ochi, Tetsuya Mitsumoto
  • Publication number: 20130115160
    Abstract: Processing techniques for forming a textured hexagonal ferrite materials such as Z-phase barium cobalt ferrite Ba3Co2Fe24O41 (Co2Z) to enhance the resonant frequency and other magnetic properties of the material for high frequency applications are provided. The processing techniques include magnetic texturing by using fine grain particles and sintering the material at a lower temperature than conventional firing temperatures to inhibit reduction of iron. The processing techniques also may include aligning M-phase (BaFe12O19 uniaxial magnetization) with non-magnetic additives in a static magnetic field and reacting with BaO source and CoO to form Z-phase (Ba3Me2Fe24O42). In some implementations, processing techniques includes aligning Co2Z phase (planar magnetization) with magnetic texturing occurring in a rotating magnetic field.
    Type: Application
    Filed: December 7, 2011
    Publication date: May 9, 2013
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventor: Michael D. Hill
  • Patent number: 8425679
    Abstract: It is the object of the invention to provide a cement admixture, and a cement composition that can impart good enough rustproofness to reinforcing bars in hardened cement concrete, and can have resistance to penetration of chloride ions entering from the outside, prevent the hardened cement concrete from getting porous due to reduced leaching of Ca ions and have a self-recovery capability. The invention provides a cement admixture characterized by containing a calcium ferroaluminate compound comprising a CaO—Al2O3—Fe2O3 system, and having a Fe2O3 content of 0.5 to 15% by mass and a CaO.2Al2O3 structure with a CaO/Al2O3 molar ratio ranging from 0.15 to 0.7.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: April 23, 2013
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Taiichiro Mori, Kazuto Tabara, Kenji Yamamoto, Minoru Morioka, Takayuki Higuchi
  • Patent number: 8419967
    Abstract: A perovskite oxide represented by a general expression, (Aa, Bb)(Cc, Dd, Xx)O3. (where, A: an A-site element, A=Bi, 0<a, B: one or more types of A-site elements, 0?b<1.0, C: an B-site element, C=Fe, 0 <c<1.0, D: one or more types of B-site elements, 0?d<1.0, 0<b+d, X: one or more types of B-site elements, the average valence of which is greater than the average valence of C and D in chemical formula, 0<x<1.0, (average valence of A-site in chemical formula) +(average valence of B-site in chemical formula)>6.0, O: oxygen, and standard molar ratio among A-site elements, B-site elements, and oxygen is 1:1:3, but it may deviate from the standard within a range in which a perovskite structure is possible.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: April 16, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Tsutomu Sasaki, Yukio Sakashita, Hiroyuki Kobayashi
  • Patent number: 8394299
    Abstract: Provided is a transition metal precursor comprising a composite transition metal compound represented by Formula I, as a transition metal precursor used in the preparation of a lithium-transition metal composite oxide: M(OH1?x)2??(1) wherein M is two or more selected from the group consisting of Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr and transition metals of period 2 in the Periodic Table of the Elements; and 0<x<0.5.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Ho Suk Shin, Sung Kyun Chang, Hong-Kyu Park, Seung Tae Hong, Sinyoung Park, Youngsun Choi
  • Patent number: 8383077
    Abstract: A method of stabilizing a metal oxide or lithium-metal-oxide electrode comprises contacting a surface of the electrode, prior to cell assembly, with an aqueous or a non-aqueous acid solution having a pH greater than 4 but less than 7 and containing a stabilizing salt, for a time and at a temperature sufficient to etch the surface of the electrode and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode remains unchanged during the acid treatment. The stabilizing salt comprises fluoride and at least one cationic material selected from the group consisting of ammonium, phosphorus, titanium, silicon, zirconium, aluminum, and boron.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 26, 2013
    Assignee: UChicago Argonne, LLC
    Inventors: Michael M. Thackeray, Sun-Ho Kang, Christopher S. Johnson
  • Patent number: 8372441
    Abstract: The subject invention concerns methods for preparing alkaline earth ferrates and the preparation of hemostatic compositions from alkaline earth ferrates. In one embodiment, the alkaline earth ferrate is strontium ferrate. In one embodiment, methods of the invention comprise heat treating mixtures of alkaline earth oxides and/or peroxides with iron oxides, such as hematite or magnetite. The subject invention also concerns hemostatic compositions produced using metallic oxides that are reacted with alkaline earth oxides and/or peroxides and the methods used to produce the hemostatic compositions.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 12, 2013
    Assignee: Biolife, LLC
    Inventors: John Alfred Thompson, John Hen
  • Patent number: 8357309
    Abstract: Single crystal and polycrystal oxoruthenates having the generalized compositions (Baz,Sr1?z)FexCoyRu6?(x+y)O11 (1?(x+y)?5; 0?z?1) and (Ba,Sr)M2±xRu4?xO11 (M=Fe,Co) belong to a novel class of ferromagnetic semiconductors with applications in spin-based field effect transistors, spin-based light emitting diodes, and magnetic random access memories.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 22, 2013
    Assignee: University of Kentucky Research Foundation
    Inventors: Larysa Shlyk, Sergly Alexandrovich Kryukov, Lance Eric De Long, Barbara Schüpp-Niewa, Rainer Niewa
  • Patent number: 8323612
    Abstract: The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 ?m and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li1+xMn2-x-yY1yO4+Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol % based on Mn; and x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m2/g (as measured by BET method); and have an average particle diameter (D50) of the lithium manganate particles of 3 to 10 ?m. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: December 4, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Kazumichi Koga, Masayuki Uegami, Kazutoshi Ishizaki, Hideaki Sadamura
  • Publication number: 20120301390
    Abstract: A method for producing a lithium mixed metal oxide, which includes mixing a lithium compound, metallic Ni or a compound thereof, and one or more transition metals selected from the group consisting of Mn, Co, Ti, Cr and Fe or a compound thereof; and calcining the obtained raw material mixture under an atmosphere of the concentration of carbon dioxide of from 1% by volume to 15% by volume at 630° C. or higher.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 29, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yoshihiro Kawakami, Ryuji Matsushita, Satoshi Shimano
  • Publication number: 20120196130
    Abstract: Spherical ferrite nanoparticles produced by a method that includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particle growth in the first aqueous solution to produce the spherical ferrite nanoparticles.
    Type: Application
    Filed: April 2, 2012
    Publication date: August 2, 2012
    Applicants: TAMAGAWA SEIKI KABUSHIKI KAISHA, Tokyo Institute of Technology
    Inventors: Masanori ABE, Hiroshi Handa, Takashi Nakagawa, Masaru Tada, Ryuichi Shimazu, Toshiyuki Tanaka
  • Patent number: 8158071
    Abstract: A unit for use within a furnace which is absent a controlled atmosphere, for carrying out a synthesizing process for synthesizing precursors to form a synthesized product at elevated temperatures. The unit consists of a vessel, having at least one opening, for containing materials of the synthesizing process, and a solid reductive material. The materials of the synthesizing process are separated from the atmosphere of the furnace by either the vessel or the reductive material. The unit is especially suited for synthesizing LiFePO4 from Fe2O3, Li2CO3, carbon black, and phosphoric acid precursors.
    Type: Grant
    Filed: April 29, 2006
    Date of Patent: April 17, 2012
    Inventors: Chun-Chieh Chang, Tsun-Yu Chang
  • Patent number: 8153097
    Abstract: A method for manufacturing ferrite powder comprises a step (a) of causing a precursor, obtained by a liquid-phase reaction method, to pass through a sieve with openings of 2 mm or less, and a step (b) of causing free fall, through the interior of a furnace tube heated to the range 750 to 1250° C. by a heater, of the precursor which has passed through the sieve. In the process of causing free fall through the interior of the furnace tube heated by the heater, ferrite powder, which is a single phase of hexagonal ferrite, is obtained by heating the precursor to a prescribed temperature and holding the precursor at the prescribed temperature.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: April 10, 2012
    Assignee: TDK Corporation
    Inventor: Mamoru Satoh
  • Publication number: 20120080638
    Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising ferromagnetic powder and a binder, wherein the ferromagnetic powder is magnetic powder comprised of gathering magnetic particles, the magnetic particles are a reduction product of hexagonal ferrite magnetic particles wherein a ratio Dc/Dtem of a crystallite size Dc obtained from a diffraction peak of a (220) plane to a particle diameter Dtem in a direction perpendicular to a (220) plane as determined by a transmission electron microscope ranges from 0.90 to 0.75.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 5, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yasushi HATTORI