Titanium (e.g., Titanate, Etc.) Patents (Class 423/598)
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Patent number: 9245688Abstract: A monolithic ceramic capacitor having a large capacity and high reliability includes a ceramic sintered body including a plurality of stacked ceramic layers, and first and second inner electrodes and alternately disposed inside the ceramic sintered body to be opposed to each other in a stacking direction of the ceramic layers with one of the ceramic layers being interposed between the adjacent first and second inner electrodes. The ceramic sintered body includes a first portion in which the first and second inner electrodes are opposed to each other, and a second portion positioned outside the first portion. A ratio (Ic/Ia) of c-axis peak intensity (Ic) to a-axis peak intensity (Ia) measured with an XRD analysis of the one of the ceramic layers is about 2 or more.Type: GrantFiled: June 8, 2012Date of Patent: January 26, 2016Assignee: Murata Manufacturing Co., Ltd.Inventor: Akihiro Shiota
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Patent number: 9145304Abstract: Methods directed to the synthesis and peroxide-modification of nanosized monosodium titanate are described. Methods include combination of reactants at a low concentration to a solution including a nonionic surfactant. The nanosized monosodium titanate can exhibit high selectivity for sorbing various metallic ions.Type: GrantFiled: September 6, 2013Date of Patent: September 29, 2015Assignee: Savannah River Nuclear Solutions, LLCInventors: David T. Hobbs, Kathryn M. L. Taylor-Pashow, Mark C. Elvington
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Patent number: 9061945Abstract: There are provided a method of manufacturing perovskite powder, and perovskite powder and a multilayer ceramic electronic component manufactured thereof. The manufacturing method includes: washing metal oxide hydrate to remove impurities therefrom; adding pure water and an acid or a base to the metal oxide hydrate to prepare a metal oxide sol; mixing the metal oxide sol with a metal salt to form perovskite particle nuclei; and conducting grain growth of the perovskite particle nuclei by hydrothermal treatment to produce perovskite powder. The method of manufacturing perovskite powder and the perovskite powder manufactured by the same have advantages such as excellent crystallinity, reduced generation of fine powder, and favorable dispersion properties.Type: GrantFiled: September 6, 2013Date of Patent: June 23, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kum Jin Park, Sang Hyuk Kim, Hye Young Baeg, Hyung Joon Jeon, Sang Hoon Kwon, Chang Hak Choi
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Publication number: 20150132623Abstract: According to one embodiment, a non-aqueous electrolyte battery is provided. The non-aqueous electrolyte battery includes a negative electrode contained a negative electrode active material. The negative electrode active material includes a monoclinic ?-type titanium-based oxide or lithium titanium-based oxide. The monoclinic ?-type titanium-based oxide or lithium titanium-based oxide has a peak belonging to (011), which appears at 2?1 in a range of 24.40° or more and 24.88° or less, in an X-ray diffraction pattern obtained by wide angle X-ray diffractometry using CuK? radiation as an X-ray source.Type: ApplicationFiled: January 23, 2015Publication date: May 14, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroki INAGAKI, Norio Takami
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Patent number: 9023305Abstract: The invention relates to a strontium-82/rubidium-82 generator, comprising a column filled with a cationic exchanger loaded with strontium-82, and having an inlet and an outlet, and a liquid medium, wherein parts of the column, inlet and outlet coming into contact with the liquid medium are iron-free, preferably metal-free, to a method for producing rubidium-82, and to the obtained diagnostic agent.Type: GrantFiled: August 14, 2009Date of Patent: May 5, 2015Assignee: Stichting Jeroen Bosch ZiekenhuisInventor: Roland Anthonius Maria Johannus Claessens
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Patent number: 9023311Abstract: A ceramic powder that contains, as a main composition, barium titanate powder having a perovskite structure with an average particle size (median size) of 200 nm or smaller as measured by SEM observation, wherein the barium titanate powder is such that the percentage of barium titanate particles having twin defects in the barium titanate powder is 13% or more as measured by TEM observation and that its crystal lattice c/a is 1.0080 or more. The ceramic powder has a wide range of optimum sintering temperatures and thus offers excellent productivity and is particularly useful in the formation of thin dielectric layers of 1 ?m or less.Type: GrantFiled: March 22, 2013Date of Patent: May 5, 2015Assignee: Taiyo Yuden Co., Ltd.Inventor: Youichi Mizuno
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Patent number: 9011713Abstract: Provided are a composite including a lithium titanium oxide and a bismuth titanium oxide, a method of manufacturing the composite, an anode active material including the composite, an anode including the anode active material, and a lithium secondary battery having improved cell performance by including the anode.Type: GrantFiled: March 14, 2012Date of Patent: April 21, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Min-sang Song, Kyu-sung Park, Gue-sung Kim, Young-min Choi
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Patent number: 9005568Abstract: The invention provides a process for production of powder of perovskite compound which comprises: the first step for obtaining an aggregate of perovskite compound which comprises at least one A group element selected from the group consisting of Mg, Ca, Sr, Ba and Pb and at least one B group element selected from the group consisting of Ti, Zr, Hf and Sn, and which is represented by the general formula ABO3 wherein A is at least one A group element and B is at least one B group element; and the second step for heating the aggregate of perovskite compound obtained in the first step in a solvent at a temperature in a range from 30° C. to 500° C. whereby disintegrating the aggregate.Type: GrantFiled: February 9, 2005Date of Patent: April 14, 2015Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Takashi Shikida, Shinji Ogama, Yoshiaki Ikeda, Kazuhisa Hidaka
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Publication number: 20150094199Abstract: A convenient and versatile method for preparing complex metal oxides is disclosed. The method uses a low temperature, environmentally friendly gel-collection method to form a single phase nanomaterial. In one embodiment, the nanomaterial consists of BaAMnBTiCOD in a controlled stoichiometry.Type: ApplicationFiled: July 29, 2014Publication date: April 2, 2015Inventors: Stephen O'Brien, Shuangyi Liu, Limin Huang
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Patent number: 8986641Abstract: In some embodiments, the present invention provides amphiphilic nanosheets that comprise lamellar crystals with at least two regions: a first hydrophilic region, and a second hydrophobic region. In some embodiments, the amphiphilic nanosheets of the present invention also comprise a plurality of functional groups that are appended to the lamellar crystals. In some embodiments, the functional groups are hydrophobic functional groups that are appended to the second region of the lamellar crystals. In some embodiments, the lamellar crystals comprise ?-zirconium phosphates. Additional embodiments of the present invention pertain to methods of making the aforementioned amphiphilic nanosheets. Such methods generally comprise appending one or more functional groups to a stack of lamellar crystals; and exfoliating the stack of lamellar crystals for form the amphiphilic nanosheets.Type: GrantFiled: March 21, 2013Date of Patent: March 24, 2015Assignee: The Texas A&M University SystemInventors: Zhengdong Cheng, Andres F. Mejia, Agustin Diaz, Abraham Clearfield, Mahboobul S Mannan, Ya-Wen Chang
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Publication number: 20150075603Abstract: A coating is described. The coating includes a metal oxide layer, which in turn includes a surface having a water contact angle greater than 90 degrees. A metal-oxide coating composition is also described. The composition includes effective amounts of a first type and a second of metals and an effective amount of oxygen to react with the first type and the second type of metals to produce a first type and a second type of metal oxides, both of which produce a structure that is greater than about 50% (by volume) amorphous.Type: ApplicationFiled: March 21, 2013Publication date: March 19, 2015Inventors: Mark Allen George, Ching-Lin Chang, Ravi Prasad
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Patent number: 8968609Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material comprises a composition that is selected from the family of (Ba,Sr)TiO3 or CaCu3Ti4O12. The compositions of the (Ba,Sr)TiO3 include the materials such as Ca1-x-yBaxSryTi1-zCrzO3-?Np, wherein 0<x<1; 0<y<1; 0?z?0.01; 0???1; and 0?p?1. The compositions of the CaCu3Ti4O12 include the materials such as Ca1-x-yBaxSry (Ca1-zCuz)Cu2Ti4-?Al?O12-0.5?, wherein 0?x<0.5; 0?y<0.5; 0?z?1; and 0???0.1.Type: GrantFiled: May 12, 2010Date of Patent: March 3, 2015Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Jay Chakraborty, Lohit Matani, Adnan Kutubuddin Bohori, Suma Memana Narayana Bhat, Somakumar Ramachandrapanicker
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Publication number: 20150051366Abstract: Disclosed herein are a novel complex metal oxide catalyst, and a method of preparing polyester using the same. The metal-bound compound of the present invention has a higher catalytic activity as compared to an antimony catalyst and existing titanium catalysts to be easily synthesized and stabilized, have a sufficient polymerization activity even with a small amount, and be used as an environmentally friendly catalyst for polyester polymerization. In addition, when preparing polyester by using the complex metal oxide of the present invention, since catalytic activity caused by phosphorus (P) which is a thermal stabilizer used to decrease pyrolysis at the time of hot-melting and molding is not deteriorated, an excessive amount of phosphorus may be used as compared to the related art, such that pyrolysis less occurs, whereby the yellowing phenomenon may be decreased and high viscosity may be maintained.Type: ApplicationFiled: April 10, 2013Publication date: February 19, 2015Inventors: Young Keun Yang, Seung Woong Yoon, Yong Taek Hwang, Kyung Ho Lim, Jong Ho Bae
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Publication number: 20150044568Abstract: A method for manufacturing lithium titanate (Li4Ti5O12) of a substantially single phase, which is excellent in rate performance, and can be easily handled. The lithium titanate (Li4Ti5O12) is prepared from substantially a raw material powder consisting of a lithium compound and a raw material powder consisting of a titanic acid compound which are mixed and the resultant mixture is calcined. A lithium carbonate is used as the lithium compound and metatitanic acid or orthotitanic acid is used as the titanic acid compound. The penetration speed coefficient of the lithium titanate obtained, to a nonaqueous electrolyte is larger than a penetration speed coefficient of lithium titanate, obtained by using a lithium hydroxide as the lithium compound, to the same nonaqueous electrolyte. The specific surface area of the lithium titanate obtained is 10 m2/g or less.Type: ApplicationFiled: March 14, 2013Publication date: February 12, 2015Applicant: TAYCA CORPORATIONInventors: Keiichi Watanabe, Shuji Nishida
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Patent number: 8940270Abstract: To provide a sulfur trioxide decomposition catalyst, particularly, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process. A sulfur trioxide decomposition catalyst comprising a composite oxide of vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process comprising decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above, is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process, is provided.Type: GrantFiled: December 27, 2011Date of Patent: January 27, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, National University Corporation Kumamoto UniversityInventors: Shinichi Takeshima, Masato Machida
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Publication number: 20150023857Abstract: One embodiment provides a method, comprising: calculating, using at least one computer, a distance to a hull for an alloy XxY1-x in the range 0.01?x?0.99, where X and Y are perovskite materials; determining, using the at least one computer, a preferred phase for the alloy in the range 0.01?x?0.99; and selecting an alloy composition having the distance to the hull being less than 0.1 eV/atom and for which the preferred phase in at least a portion of the range 0.01?x?0.99 is a tetragonal phase. Piezoelectric materials as selected by the method are also provided.Type: ApplicationFiled: July 15, 2014Publication date: January 22, 2015Applicants: Massachusetts Institute of Technology, Central Michigan University, Robert Bosch LLC Research and Technology CenterInventors: Rickard Roberto ARMIENTO, Gerbrand CEDER, Marco FORNARI, Geoffroy HAUTIER, Boris KOZINSKY
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Publication number: 20150010756Abstract: Crystalline strontium titanate powder (SrTiO3) and a method of preparing strontium titanate powder (SrTiO3) are provided. A method of preparing strontium titanate powder involves providing an aqueous solution comprising a strontium precursor and a titanium precursor, immersing a polymer compound in the aqueous solution, and heating the aqueous solution in which the polymer compound is immersed.Type: ApplicationFiled: June 30, 2014Publication date: January 8, 2015Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Dae Ho YOON, Suk Hyun SONG, Masaki TAKAKI
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Patent number: 8927154Abstract: A spherical primary particle of a lithium titanium oxide of which average diameter is in the range of about 1 to about 20 ?m, a method of preparing the spherical primary particle of the lithium titanium oxide, and a lithium rechargeable battery including the spherical primary particle of the lithium titanium oxide.Type: GrantFiled: October 5, 2010Date of Patent: January 6, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Jong-Hee Lee, Young-Su Kim, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee, Deok-Hyun Kim, Gu-Hyun Chung, Beom-Kwon Kim, Yong-Mi Yu
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Publication number: 20140374642Abstract: Methods for forming lead zirconate titanate (PZT) nanoparticles are provided. The PZT nanoparticles are formed from a precursor solution, comprising a source of lead, a source of titanium, a source of zirconium, and a mineraliser, that undergoes a hydro thermal process. The size and morphology of the PZT nanoparticles are controlled, in part, by the heating schedule used during the hydro thermal process.Type: ApplicationFiled: August 17, 2012Publication date: December 25, 2014Applicant: University of Washington through its Center for CommercializationInventors: I-Yeu Shen, Guozhong Cao, Hsien-Lin Huang
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Publication number: 20140363368Abstract: The present invention relates to titanium dioxide nanoparticles, titanate, lithium titanate nanoparticles, and preparation methods thereof. According to the present invention, titanium dioxide nanoparticles having a quasicrystalline phase corresponding to an intermediate form between a crystalline phase and an amorphous phase may be provided.Type: ApplicationFiled: December 27, 2012Publication date: December 11, 2014Inventors: Dong Hyun Kim, Jhi-Yong Kim, Juno Seok, Seok-Mo Chung, Jong Son
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Publication number: 20140363366Abstract: A process for the preparation of Li4Ti5O12 by a novel, low-cost route from titanium tetrachloride is described. In the process disclosed herein, conditions have been discovered which result in the preparation of Li4Ti5O12 having a high purity and a high surface area. These properties are useful for good performance in a lithium ion battery.Type: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Inventor: JEFFERY SCOTT THOMPSON
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Publication number: 20140363367Abstract: A process for the preparation of Li4Ti5O12 by a novel, low-cost route from titanium tetrachloride is described. In the process disclosed herein, conditions have been discovered which result in the preparation of Li4Ti5O12 having a high purity and a high surface area. These properties are useful for good performance in a lithium ion battery.Type: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Inventor: SANG-HWAN KIM
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Patent number: 8906272Abstract: An infra-red reflective material is a perovskite-like multiple oxide which includes at least an alkaline-earth metal and at least one type of element selected from a group of titanium, zirconium and niobium, and further, if necessary, manganese and/or iron, an element belonging to the IIIa group of the periodic table such as aluminum and gallium, etc., or zinc, etc., has sufficient infra-red reflective power, is excellent in thermal stability and heat resistance, and does not raise concerns on safety and environmental issues. The infra-red reflective material can be produced by, for example, mixing an alkaline-earth metal compound and a titanium compound and further, if necessary, a manganese compound and/or an iron compound, a compound belonging to the IIIa group of the periodic table, or a zinc compound in predetermined amounts, and firing the mixture.Type: GrantFiled: May 21, 2009Date of Patent: December 9, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Yoichi Takaoka, Norihiko Sanefuji, Emi Ohta
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Patent number: 8900537Abstract: 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: GrantFiled: May 11, 2011Date of Patent: December 2, 2014Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, RenoInventors: Vaidyanathan Subramanian, Sankaran Murugesan
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Patent number: 8900490Abstract: This invention provides a titanic acid compound-type electrode active material having a high battery capacity and, at the same time, having excellent cycle characteristics. The titanic acid compound exhibits an X-ray diffraction pattern corresponding to a bronze-type titanium dioxide except for a peak for a (003) face and a (?601) face and having a lattice spacing difference between the (003) face and the (?601) face, i.e., d(003)?d(?601), of not more than 0.0040 nm. The titanic acid compound may be produced by reacting a layered alkali metal titanate, represented by a compositional formula MxM?x/3Ti2?x/3O4 wherein M and M?, which may be the same or different, represent an alkali metal; and x is in the range of 0.50 to 1.0, with an acidic compound and then heating the reaction product at a temperature in the range of 250 to 450° C.Type: GrantFiled: August 27, 2008Date of Patent: December 2, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hirofumi Taniguchi, Masatoshi Honma
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Publication number: 20140335357Abstract: A negative-electrode active material disclosed herein contains a lithium titanate having a spinel structure, and satisfies the relationship B×P<50, where B is a specific surface (unit: m2/g) of the lithium titanate as measured by a BET technique; and P is obtained by immersing 1 g of the lithium titanate in 50 cm3 of redistilled water and determining a pH of the redistilled water after 30 minutes of agitation.Type: ApplicationFiled: November 27, 2012Publication date: November 13, 2014Applicant: PANASONIC CORPORATIONInventors: Takashi Takeuchi, Masaki Hasegawa, Natsumi Goto
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Publication number: 20140326918Abstract: 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: ApplicationFiled: May 23, 2013Publication date: November 6, 2014Inventor: LIang-Yuh Chen
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Patent number: 8877339Abstract: Sodium hexatitanate having a mean particle diameter in the range of 2-5 ?m and an indeterminate shape, and is either obtained by firing a milled mixture obtained as a result of mechanochemical milling of a titanium source and a sodium source or prepared from sodium trititanate obtained by firing a milled mixture obtained as a result of mechanochemical milling of a titanium source and a sodium source.Type: GrantFiled: June 2, 2008Date of Patent: November 4, 2014Assignee: Otsuka Chemical Co., Ltd.Inventors: Takashi Hamauzu, Nobuki Itoi
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Publication number: 20140308200Abstract: A method for making an anode active material of a lithium ion battery is provided. In the method, a tetrabutyl titanate solution and a water solution of lithium hydroxide is provided. The tetrabutyl titanate solution is incrementally added into the water solution of lithium hydroxide to react with the water solution of lithium hydroxide in an alkaline environment to obtain a mixed precipitate. The mixed precipitate is calcined to synthesize a spinel type lithium titanate. The spine lithium titanate is used as the anode active material to improve an electrochemical performance of the lithium ion battery.Type: ApplicationFiled: June 24, 2013Publication date: October 16, 2014Inventors: LI SUN, JIA-PING WANG, SHOU-SHAN FAN
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Publication number: 20140302664Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Applicant: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil GONEN WILLIAMS, Yijun Wang, Robert J. Wiaceck, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Patent number: 8853116Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.Type: GrantFiled: May 10, 2010Date of Patent: October 7, 2014Assignee: EEStor, Inc.Inventors: Richard D. Weir, Carl W. Nelson
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Publication number: 20140295649Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: June 20, 2014Publication date: October 2, 2014Applicant: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil GONEN WILLIAMS, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Publication number: 20140295247Abstract: According to one embodiment, there are provided an active material for a battery having a high effective capacity, a nonaqueous electrolyte battery, and a battery pack. The active material contains a niobium-titanium composite oxide. When the active material is subjected to powder X-ray diffraction (XRD) using a Cu-K? ray source, a peak appears in a range of 2?=5°±0.5° in the diffraction pattern.Type: ApplicationFiled: March 11, 2014Publication date: October 2, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kazuomi YOSHIMA, Yasuhiro HARADA, Hiroki INAGAKI, Norio TAKAMI
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Publication number: 20140287302Abstract: Sodium titanium oxide is used as an anode active material for a sodium battery to improve the cycle properties of the sodium battery. For example, the anode active material is preferably a sodium titanium oxide having the following composition formula (1) or (2). Na2+XTi3O7 (0?X?0.9) Composition formula (1) Na4+XTi5O12 (0?X?1.0) Composition formula (2) The sodium titanium oxide may have the following composition formula by reducing the water content of the battery and optimizing the particle size of the active material. Na2+XTi3O7 (0?X?2.0) Composition formula (1?) Na4+XTi5O12 (0?X?2.Type: ApplicationFiled: November 5, 2012Publication date: September 25, 2014Applicant: Sumitomo Electric Industries, Ltd.Inventors: Atsushi Fukunaga, Shinji Inazawa, Koji Nitta, Shoichiro Sakai
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Publication number: 20140287199Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising a polycrystalline layer of TiZrAl2O3.Type: ApplicationFiled: March 20, 2014Publication date: September 25, 2014Applicant: Kennametal Inc.Inventors: Zhenyu Liu, Peter Rudolf Leicht, Rodrigo Alejandro Cooper, Mark S. Greenfield, Yixiong Liu
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Publication number: 20140271447Abstract: Piezoelectric oriented ceramics containing a Pb(Ti, Zr)O3-based compound having a high degree of orientation not lower than 0.64, which was calculated with the Lotgering method based on an X-ray diffraction pattern in a prescribed cross-section thereof, and having a sintered density not lower than 85% of a theoretical density.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicants: MURATA MANUFACTURING CO., LTD., National Institute for Materials ScienceInventors: Yasunari Miwa, Shinichiro Kawada, Masahiko Kimura, Tohru Zuzuki, Tetsuo Uchikoshi, Yoshio Sakka
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Publication number: 20140268481Abstract: A complex oxide includes a chemical compound represented by ABO3 (Chemical Formula 1). In the Chemical Formula 1, A is one or more elements selected from Ba, Ca, and Sr; and B is one or more elements selected from Ti, Zr, Hf, and Sn. When a field having a size of 1 ?m×1 ?m on a surface of the complex oxide is observed with an atomic force microscope (AFM), a typical particle size is greater than or equal to 300 nm and less than 660 nm. Here, the typical particle size is a maximum length of a maximum particle observed in the field.Type: ApplicationFiled: February 19, 2014Publication date: September 18, 2014Applicant: RICOH COMPANY, LTD.Inventors: Yoshikazu AKIYAMA, Xianfeng CHEN
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Patent number: 8828280Abstract: The paste composition for forming a back electrode of solar cell 10 provided by the present invention contains, as solids, an aluminum powder, a glass powder and a composite powder composed of a particulate composite of a metal oxide with a silicon-containing organic or inorganic compound. This composite powder is contained in an amount of at least 0.01 mass % but less than 0.45 mass % given 100 mass % as the total of the composite powder, the aluminum powder and the glass powder.Type: GrantFiled: December 21, 2010Date of Patent: September 9, 2014Assignee: Noritake Co., LtdInventors: Kosuke Ochi, Shinji Senda, Masao Yamagishi, Mamiko Kume
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Publication number: 20140242795Abstract: Sterically hindered imidazolate ligands are described, along with their synthesis, which are capable of coordinating to Group 2 metals, such as: calcium, magnesium, strontium, in an eta-5 coordination mode which permits the formation of monomeric or dimeric volatile complexes. A compound comprising one or more polysubstituted imidazolate anions coordinated to a metal selected from the group consisting of barium, strontium, magnesium, radium or calcium or mixtures thereof. Alternatively, one anion can be substituted with and a second non-imidazolate anion.Type: ApplicationFiled: February 27, 2014Publication date: August 28, 2014Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: John Anthony Thomas Norman, Melanie K. Perez, Moo-Sung Kim
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Patent number: 8802050Abstract: There are provided a method of manufacturing a ceramic powder having a perovskite structure and a ceramic powder having a perovskite structure manufactured by the same. The method includes: mixing a compound of an element corresponding to site A in an ABO3 perovskite structure as well as a compound of an element corresponding to site B in the same structure, with supercritical water in a continuous mode to form seed crystals; and mixing the seed crystals in a batch mode to conduct grain growth thereof.Type: GrantFiled: March 2, 2012Date of Patent: August 12, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Chang Hak Choi, Kum Jin Park, Kang Heon Hur, Hye Young Baeg, Jung Hwan Kim, Hyung Joon Jeon, Sang Hoon Kwon
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Publication number: 20140220448Abstract: A process of preparing nanostructured lithium titanate particles. The process contains the steps of providing a solvent containing a soft-template compound, a lithium ion-containing compound, and a titanium ion-containing compound; removing the solvent to obtain a lithium titanate precursor; and calcining the precursor followed by milling and annealing. Also disclosed is a nanostructured lithium titanate particle prepared by this process.Type: ApplicationFiled: June 27, 2012Publication date: August 7, 2014Applicant: National University of SingaporeInventors: Palani Balaya, Srirama Hariharan
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Publication number: 20140209834Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.Type: ApplicationFiled: April 1, 2014Publication date: July 31, 2014Applicant: SUED-CHEMIE IP GMBH & CO. KGInventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer
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Patent number: 8771631Abstract: A method is provided which includes a reaction step of reacting at least titanium oxide, a calcium compound, and barium hydroxide in a slurry solution so as to produce a perovskite-type composite oxide. The perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, and x is within a range of 0<x?0.125. In addition, the method provides a perovskite-type composite oxide in which a water-soluble calcium compound is used as the calcium compound, and when the perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, x is within a range of 0<x?0.20.Type: GrantFiled: February 22, 2012Date of Patent: July 8, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Toshiharu Nakagawa, Norikazu Tachibana, Yasunari Nakamura
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Publication number: 20140186706Abstract: A method is presented for fabricating an anode preloaded with consumable metals. The method provides a material (X), which may be one of the following materials: carbon, metals able to be electrochemically alloyed with a metal (Me), intercalation oxides, electrochemically active organic compounds, and combinations of the above-listed materials. The method loads the metal (Me) into the material (X). Typically, Me is an alkali metal, alkaline earth metal, or a combination of the two. As a result, the method forms a preloaded anode comprising Me/X for use in a battery comprising a M1YM2Z(CN)N·MH2O cathode, where M1 and M2 are transition metals. The method loads the metal (Me) into the material (X) using physical (mechanical) mixing, a chemical reaction, or an electrochemical reaction. Also provided is preloaded anode, preloaded with consumable metals.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: Sharp Laboratories of America, Inc.Inventors: Long Wang, Yuhao Lu, Jong-Jan Lee
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Patent number: 8753999Abstract: A catalyst for selective oxidation of hydrocarbons relative to carbon monoxide includes a mixed oxide based on the compound Ce0.1-0.5Ti0.2-0.8Cr0.1-0.5Ox, wherein x is (the total of the valences of the metals)/2. Preferably, the mixed oxide is fixed as a coating on a molded body or less than 0.5 wt. % precious metal is doped to the mixed oxide. Oxidizable exhaust-gas components are oxidized for exhaust-gas purification by a mixed oxide based on the compound Ce0.1-0.5Ti0.2-0.8Cr0.1-0.5Ox as the catalyst. Preferably, hydrocarbons are preferentially oxidized relative to carbon monoxides or nitrogen oxides. For producing an oxidation catalyst for internal combustion engines, a mixed oxide made of cerium oxide, titanium oxide, chromium oxide, and optionally other metal oxides is fixed to a metallic or oxide or carbide, high temperature-stable molded body or an oxide ceramic, wherein the oxide ceramic is fixed to a molded body.Type: GrantFiled: July 8, 2009Date of Patent: June 17, 2014Assignee: Heraeus Precious Metals GmbH & Co. KGInventors: Uwe Endruschat, Ansgar Wille, Prasanna Rajagopalan
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Patent number: 8721913Abstract: A lead-based particulate piezoelectric material has a median diameter of less than 1 ?m and a particle size distribution expressed by [arithmetic deviation/mean] of no greater than 15% and in which no less than 85% of all particles are cubic.Type: GrantFiled: October 31, 2011Date of Patent: May 13, 2014Assignee: NGK Insulators, Ltd.Inventor: Takaaki Koizumi
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Publication number: 20140127398Abstract: This invention relates to methods of preparing positive electrode materials for electrochemical cells and batteries. It relates, in particular, to a method for fabricating lithium-metal-oxide electrode materials for lithium cells and batteries. The method comprises contacting a hydrogen-lithium-manganese-oxide material with one or more metal ions, preferably in an acidic solution, to insert the one or more metal ions into the hydrogen-lithium-manganese-oxide material; heat-treating the resulting product to form a powdered metal oxide composition; and forming an electrode from the powdered metal oxide composition.Type: ApplicationFiled: January 14, 2014Publication date: May 8, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Michael M. THACKERAY, Sun-Ho KANG, Mahalingam BALASUBRAMANIAN, Jason CROY
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Patent number: 8715614Abstract: The invention relates to a process for the preparation of fine barium titanate (BaTiO3) powders. The process comprises introducing an aqueous solution (I) containing salts of barium and titanium, and an aqueous basic solution (II) containing an inorganic or organic base separately and simultaneously into a high-gravity reactor with the high-gravity level of 1.25G to 12,500G and performing the reaction of the solution (I) with the solution (II) at a temperature of from 60 to 100° C. The solution (I) is preheated to a temperature ranging from 60° C. to 65° C. and the solution (II) is preheated to a temperature ranging from 60° C. to 100° C. respectively prior to the reaction, in which the Ba/Ti molar ratio in the solution (I) is more than 1 and the concentration of the base in the solution (II) is such that the reaction mixture is maintained at a constant OH? concentration, preferably a pH value of about 14.Type: GrantFiled: July 21, 2003Date of Patent: May 6, 2014Assignee: Beijing University of Chemical TechnologyInventors: Jianfeng Chen, Xiaolin Liu, Zhigang Shen, Guangwen Chu
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Patent number: 8716172Abstract: Catalyst composition represented by the general formula REVO/S wherein RE is at least one of the group of rare earth metals Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Er and Yb in an amount of up to 6.0 wt.-%; V is vanadium in an amount of 0.2-2.5 wt.-%; O is oxygen in an amount of up to 3.5 wt.-%; and S is a support containing TiO2 in an amount of at least 70 wt.-%, with the rest being WO3 and optionally SiO2. This catalyst composition shows high removal efficiencies for NOx even after aging at 750° C.Type: GrantFiled: November 12, 2004Date of Patent: May 6, 2014Assignee: Treibacher Industrie AGInventors: Karl Schermanz, Irene Begsteiger, Alessandro Trovarelli, Eliana Rocchini, Marzia Casanova
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Patent number: 8715827Abstract: A particulate porous spherical titanium dioxide has a TiO2 content of at least 99.0% by weight, a particle size d50 in the range of 30 to 350 ?m, a tight particle size distribution (B 90/10) in the region of a maximum of 120 ?m, a pore diameter of 1 to 30 nm, a pore volume of at least 0.1 cm3/g, and a surface area of 30 to 300 m2/g (BET).Type: GrantFiled: September 19, 2011Date of Patent: May 6, 2014Assignee: Sachtleben Chemie GmbHInventors: Bernd Rohe, Markus Schulte, Christian Spitzwieser