Composite Powder (e.g., Coated, Etc.) Patents (Class 428/570)
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Patent number: 12087483Abstract: Methods for manufacturing dual phase soft magnetic components include combining a plurality of soft ferromagnetic particles with a plurality of paramagnetic particles to form a component structure, wherein the plurality of soft ferromagnetic particles each comprise an electrically insulative coating, and, heat treating the component structure to consolidate the plurality of soft ferromagnetic particles with the plurality of paramagnetic particles.Type: GrantFiled: February 14, 2022Date of Patent: September 10, 2024Assignee: General Electric CompanyInventors: Wanming Zhang, Ananda Barua, Shenyan Huang, Changjie Sun, Vandana Prabhakar Rallabandi, Anthony Joseph Vinciquerra, Min Zou
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Patent number: 12041729Abstract: A printed wiring board includes an insulating substrate, a first conductor layer formed on a first surface of the substrate, a second conductor layer formed on a second surface of the substrate, and through-hole conductors formed through the substrate and connecting the first and second conductor layers. The substrate has openings formed such that each opening extends from the first to second surfaces of the substrate, and magnetic material filling the openings and forming through holes such that each through hole extends from the first to second surfaces of the substrate, the through-hole conductors are formed on sidewalls of the through holes in the magnetic material, and the magnetic material includes resin and particles including magnetic metal such that the particles include a group of particles forming the sidewalls of the through holes and that each particle in the group has a substitution plating film formed on a surface thereof.Type: GrantFiled: January 26, 2021Date of Patent: July 16, 2024Assignee: IBIDEN CO., LTD.Inventors: Satoru Kawai, Yasuki Kimishima
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Patent number: 12030126Abstract: A droplet comprises a core including an alloy comprising a majority of a first metallic element and a minority of a second element, wherein the core is in a liquid state below a solidus temperature of the alloy. A shell is arranged to enclose the core and includes an exterior surface comprising a majority of the second element and a minority of the first metallic element, wherein the shell is in a solid state below the solidus temperature of the alloy. The alloy can comprise a solder material that can be used to form solder connections below a solidus temperature of the alloy.Type: GrantFiled: July 22, 2021Date of Patent: July 9, 2024Assignee: THE INDIUM CORPORATION OF AMERICAInventors: Martin Thuo, Ian Tevis
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Patent number: 11945030Abstract: A method of forming an article includes producing a base powder including a plurality of base particles. Each base particle includes an external surface and a first material. The method further includes removing one or more oxides from the external surface of each base particle to form a cleaned powder including a plurality of cleaned particles. Each cleaned particle includes a cleaned external surface made of the first material. The method further includes coating the cleaned external surface of each cleaned particle with a second material having a greater oxidation resistance than the first material to form a coated powder including a plurality of coated particles. Each coated particle includes an external layer including the second material that fully covers the cleaned external surface made of the first material. The method further includes forming the article using the coated powder.Type: GrantFiled: September 30, 2022Date of Patent: April 2, 2024Assignee: ROLLS-ROYCE PLCInventor: David A. Stewart
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Patent number: 11869692Abstract: A magnetic material includes a soft magnetic metal grain containing Fe, and a multilayer oxide film covering the surfaces of the soft magnetic metal grain. The multilayer oxide film has a first oxide layer of crystalline nature containing Fe, and a second oxide layer of amorphous nature containing Si. In an embodiment, the silicon oxide film of amorphous nature is formed by dripping, divided into multiple sessions, a treatment solution containing TEOS (tetraethoxy silane), ethanol, and water into a mixed solution containing the soft magnetic metal grain, ethanol, and ammonia water, to mix the solutions.Type: GrantFiled: June 14, 2018Date of Patent: January 9, 2024Assignee: TAIYO YUDEN CO., LTDInventors: Yoko Orimo, Xinyu Li, Shinsuke Takeoka
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Patent number: 11694827Abstract: The present invention can provide light-colored magnetic particles having a zirconium oxide coating layer formed on a magnetic core, and having a silver coating layer formed on the zirconium oxide coating layer, and a part of the surface of the zirconium oxide coating layer is exposed to the outside, but chemical resistance is excellent, and thus the magnetic particles hardly cause a change of magnetic characteristics so as to be suitable for security elements.Type: GrantFiled: November 8, 2018Date of Patent: July 4, 2023Assignee: Korea Minting, Security Printing & ID Card Operating Corp.Inventors: Hong Keon Kim, Won Gyun Choe, Su Dong Kim, Hyun Soo Kim, E Den Kim, Hye Jun Choi, Ju Hee Kang
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Patent number: 11596582Abstract: The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.Type: GrantFiled: August 16, 2019Date of Patent: March 7, 2023Assignee: Ivoclar Vivadent AGInventors: Kai Rist, Annette Schmidt, Ahmad Shaaban
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Patent number: 11542605Abstract: The disclosed process is capable of depositing thin layers of a wide variety of metals onto powders of magnesium, aluminum, and their alloys. A material is provided that comprises particles containing a reactive metal coated with a noble metal that has a less-negative standard reduction potential than the reactive metal. The coating has a thickness from 1 nanometer to 100 microns, for example. A method of forming an immersion deposit on a reactive metal comprises: combining a reactive metal, an ionic liquid, and a noble metal salt; depositing the noble metal on the reactive metal by a surface-displacement reaction, thereby generating the immersion deposit on the reactive metal; and removing the ionic liquid from the immersion deposit. The material may be present in an article or object (e.g., a sintered part) containing from 0.25 wt % to 100 wt % of a coated reactive metal as disclosed herein.Type: GrantFiled: April 8, 2020Date of Patent: January 3, 2023Assignee: HRL Laboratories, LLCInventors: John H. Martin, Adam F. Gross
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Patent number: 11538616Abstract: A coil electronic component includes a body, in which a coil portion is embedded, including a plurality of magnetic particles, and an external electrode connected to the coil portion. Among the plurality of magnetic particles, at least a portion of magnetic particles include a first layer, disposed on a surface of a magnetic particle among the magnetic particles, and a second layer disposed on a surface of the first layer. The first layer is an inorganic coating layer containing a phosphorus (P) component, and the second layer is an atomic layer deposition layer.Type: GrantFiled: April 30, 2019Date of Patent: December 27, 2022Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kyung Lock Kim, Byeong Cheol Moon, Chang Hak Choi, Jeong Gu Yeo, Young Il Lee
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Patent number: 11424049Abstract: While a water reaction system containing silver ions is irradiated with ultrasonic waves to cause cavitation therein, a reducing agent containing solution, which contains an aldehyde as a reducing agent, is mixed with the water reaction system to deposit silver particles, the solid-liquid separation of which is carried out, and thereafter, the separated silver particles are washed and dried to produce a spherical silver powder which has a closed cavity in each particle thereof.Type: GrantFiled: February 12, 2013Date of Patent: August 23, 2022Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Koji Hirata, Noriaki Nogami
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Patent number: 11305344Abstract: The present invention disclosed an improved process for the preparation of bimetallic core-shell nanoparticles by using facile aqueous phase synthesis strategy and their application in catalysis such as selective hydrogenation of alkynes into alkenes or alkanes and CO hydrogenation to hydrocarbons.Type: GrantFiled: October 25, 2017Date of Patent: April 19, 2022Assignee: Council of Scientific & Industrial ResearchInventors: Vinod Chathakudath Prabhakaran, Vysakh Alengattil Bharathan
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Patent number: 11292088Abstract: A composite material comprising a plurality of round particles bound together by a binding material. Each of the plurality of round particles includes a wear resistant element, an intermediate coating on the wear resistant element, and a round outer layer encapsulating the intermediate coating and the wear resistant element. The intermediate coating is metallurgically bonded to the wear resistant element, and is metallurgically bondable to the binding material.Type: GrantFiled: October 22, 2018Date of Patent: April 5, 2022Assignee: Oerlikon Metco (US) Inc.Inventor: Andrew Bell
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Patent number: 11052354Abstract: The invention relates to a membrane, and method of manufacture of a membrane for reverse osmosis having a porous substrate, and a layer adjacent the porous substrate comprising a two dimensional nanosheet material and crosslinked polymer. The two dimensional nanosheet material is preferably chosen from the group comprising graphene oxide including reduced graphene oxide, holey graphene, holey graphene oxide, laminated graphene oxide and holey reduced graphene oxide.Type: GrantFiled: December 14, 2017Date of Patent: July 6, 2021Assignee: MONASH UNIVERSITYInventors: Huanting Wang, Seungju Kim
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Patent number: 10954168Abstract: A ceramic matrix composite article includes a melt infiltration ceramic matrix composite substrate comprising a ceramic fiber reinforcement material in a ceramic matrix material having a free silicon proportion, and a chemical vapor infiltration ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having essentially no free silicon proportion disposed on an outer surface of at least a portion of the substrate.Type: GrantFiled: September 21, 2018Date of Patent: March 23, 2021Assignee: General Electric CompanyInventors: Krishan Lal Luthra, Gregory Scot Corman, Badri Narayan Ramamurthi
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Patent number: 10895545Abstract: A method of detecting conversion quality includes the steps of providing an article having a green material and a semiconductor material, processing the green material and the semiconductor material to produce a matrix composite, and detecting a matrix composite conversion quality with the semiconductor material.Type: GrantFiled: September 26, 2014Date of Patent: January 19, 2021Assignee: Raytheon Technologies CorporationInventors: Michael J. Birnkrant, Wayde R. Schmidt
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Patent number: 10867730Abstract: A process for producing an ordered martensitic iron nitride powder that is suitable for use as a permanent magnetic material is provided. The process includes fabricating an iron alloy powder having a desired composition and uniformity; nitriding the iron alloy powder by contacting the material with a nitrogen source in a fluidized bed reactor to produce a nitride iron powder; transforming the nitride iron powder to a disordered martensitic phase; annealing the disordered martensitic phase to an ordered martensitic phase; and separating the ordered martensitic phase from the iron nitride powder to yield an ordered martensitic iron nitride powder.Type: GrantFiled: May 8, 2018Date of Patent: December 15, 2020Assignee: Case Western Reserve UniversityInventor: David Matthiesen
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Patent number: 10784053Abstract: Improvements in design and manufacturing techniques to produce a graphene based prismatic supercapacitor of very high capacitance with very high energy density storage able to outperform and replace the cutting edge batteries available in the market today.Type: GrantFiled: June 21, 2019Date of Patent: September 22, 2020Inventor: Ivan Araujo Dayrell
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Patent number: 10774669Abstract: An air seal in a gas turbine engine comprising a substrate. A bond coating layer is adhered to the substrate. An abradable layer is adhered to the bond coating layer. The abradable layer comprises a metal matrix discontinuously filled with a soft ceramic material.Type: GrantFiled: October 25, 2018Date of Patent: September 15, 2020Assignee: Raytheon Technologies CorporationInventor: Christopher W. Strock
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Patent number: 10745528Abstract: The present invention relates to a method for producing a metal nanoparticle-polymer composite thin film comprising uniformly shaped metal nanoparticles uniformly dispersed in a polymer matrix, and more particularly to a method for producing a gold nanoparticle-polymer composite thin film, comprising the steps of: (A) preparing a mixture of an ionic liquid and polyethylene oxide; (B) preparing a reaction solution by dissolving a gold nanoparticle precursor in the mixture; (C) producing a gold nanoparticle-polymer composite by applying plasma to the interface of the reaction solution; and (D) separating the gold nanoparticle-polymer composite from the reaction solution.Type: GrantFiled: December 13, 2018Date of Patent: August 18, 2020Assignee: The Industry & Academic Cooperation in Chungnam National University (IAC)Inventors: Ho-Suk Choi, Quoc Chinh Tran
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Patent number: 10714273Abstract: Improvements in design and manufacturing techniques to produce a graphene based prismatic supercapacitor of very high capacitance with very high energy density storage able to outperform and replace the cutting edge batteries available in the market today.Type: GrantFiled: June 21, 2019Date of Patent: July 14, 2020Inventor: Ivan Araujo Dayrell
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Patent number: 10679780Abstract: A composite soft magnetic material includes the following components: 67.9 to 95.54 wt % of FeSiCr, 0.1 to 0.3 wt % of TiO2, 0.15 to 0.75 wt % of SiO2, 0.1 to 0.5 wt % of Mn3O4, 0.1 to 0.5 wt % of ZnO, 3.4 to 25.9 wt % of BaO, 0.4 to 3 wt % of B2O3, 0.2 to 0.85 wt % of CaO, and 0.01 to 0.3 wt % of CuO. The composite soft magnetic material has high initial permeability and high Bs, excellent temperature stability, and low temperature coefficient.Type: GrantFiled: January 8, 2018Date of Patent: June 9, 2020Assignee: Shenzhen Sunlord Electronics Co., Ltd.Inventors: Min Tan, Min Nie, Youyun Li
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Patent number: 10569329Abstract: Metal nanoparticles and compositions derived therefrom can be used in a number of different applications. Methods for making metal nanoparticles can include providing a first metal salt in a solvent; converting the first metal salt into an insoluble compound that constitutes a plurality of nanoparticle seeds; and after forming the plurality of nanoparticle seeds, reacting a reducing agent with at least a portion of a second metal salt in the presence of at least one surfactant and the plurality of nanoparticle seeds to form a plurality of metal nanoparticles. Each metal nanoparticle can include a metal shell formed around a nucleus derived from a nanoparticle seed, and the metal shell can include a metal from the second metal salt. The methods can be readily scaled to produce bulk quantities of metal nanoparticles.Type: GrantFiled: June 6, 2017Date of Patent: February 25, 2020Assignee: Kuprion Inc.Inventor: Alfred A. Zinn
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Patent number: 10458505Abstract: The cylinder rod of a hydraulic cylinder includes a body portion having a bar shape, and a head portion arranged at a longitudinal end of the body portion. The body portion has a coating formed on its outer peripheral surface. The coating includes, in terms of area ratio in cross section, not less than 56.1% and not more than 84.4% of a chromium carbide phase, with the remainder consisting of a nickel-based alloy phase and an oxide phase. The area ratio of the chromium carbide phase may be 61.7% or more.Type: GrantFiled: March 13, 2015Date of Patent: October 29, 2019Assignee: KOMATSU LTD.Inventor: Toshiyuki Iseki
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Patent number: 10373765Abstract: Improvements in design and manufacturing techniques to produce a graphene based prismatic supercapacitor of very high capacitance with very high energy density storage able to outperform and replace the cutting edge batteries available in the market today.Type: GrantFiled: May 22, 2017Date of Patent: August 6, 2019Inventor: Ivan Araujo Dayrell
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Patent number: 10106755Abstract: The present invention is a fuel additive that includes adducts which have been formed in a solution of metallic ions, ethanol and water. In particular, the adducts are formed for the fuel additive when the solution is electromagnetically radiated. When formed, the adducts have relatively strong permanent dipoles that will influence the temporary dipoles of hydrocarbons in untreated fuel. Specifically, under the influence of the fuel additive, hydrocarbons in the treated fuel will exhibit permanent dipoles that more effectively interact with oxygen molecules from air when the treated fuel is atomized in air in a combustion chamber.Type: GrantFiled: August 8, 2016Date of Patent: October 23, 2018Inventor: Thomas R. Horst
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Patent number: 10020435Abstract: A composite thermoelectric material comprising a matrix comprising a thermoelectric semiconductor; and a nanoscale heterophase dispersed in the matrix, wherein the thermoelectric semiconductor comprises an element belonging to Group 15 of the Periodic Table of the Elements, and the heterophase comprises a transition metal element.Type: GrantFiled: February 20, 2014Date of Patent: July 10, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Weon-ho Shin, Jong wook Roh, Kyu-hyoung Lee, Dae-jin Yang, Sang-il Kim
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Patent number: 9878122Abstract: The invention provides methods and apparatus for stable generation and delivery of solid nano-particles in aerosols that simultaneously maintain high nano-particle concentration, and which avoid coagulation and agglomeration of the nano-particles. The apparatus includes a Collison nebulizer is in communication with a plenum. The Collison nebulizer includes a port for introducing a helium gas flow into the Collison nebulizer. The plenum includes component(s) for providing flow of uniform axially symmetrical dry air around the nano-particles entrained in the helium gas flow in the plenum. Preferably, the plenum includes an uniformity screen and a reduction in the plenum circumference downstream from the uniformity screen. In some preferred aspects, the invention provides methods of introducing nanoparticles into the lungs of test animals. The present invention allows more than 0.5 mass % of the nano-particles to be deposited in an animal's lungs.Type: GrantFiled: October 25, 2011Date of Patent: January 30, 2018Assignee: Battelle Memorial InstituteInventors: Vladimir B. Mikheev, William C. Forsythe, Benjamin N. Swita
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Patent number: 9765249Abstract: A method of forming a mixture including a ceramic material into a sheet, sectioning at least a portion of the sheet using a mechanical object and forming at least one shaped abrasive particle from the sheet, such that the at least one shaped abrasive particle can have a two-dimensional shape as viewed in a plane defined by a length and a width of the shaped abrasive particle selected from the group consisting of polygons, ellipsoids, numerals, Greek alphabet characters, Latin alphabet characters, Russian alphabet characters, complex shapes having a combination of polygonal shapes, and a combination thereof.Type: GrantFiled: July 18, 2014Date of Patent: September 19, 2017Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.Inventors: Paul Braun, Doruk O. Yener, Jennifer H. Czerepinski, Ralph Bauer, Krishnamoorthy Subramanian, Robin M. Bright, Anuj Seth, Gregory G. Lafond
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Patent number: 9763314Abstract: In some variations, a vapor-cell system comprises: a vapor-cell region configured to allow at least one vapor-cell optical path into a vapor phase within the vapor-cell region; a first electrode disposed in contact with the vapor-cell region; a second electrode that is electrically isolated from the first electrode; and a transparent ion-conducting layer interposed between the first electrode and the second electrode, wherein the transparent ion-conducting layer is optically transparent over a selected optical band of electromagnetic wavelengths. Some embodiments provide a magneto-optical trap or atomic-cloud imaging apparatus, comprising: the disclosed vapor-cell system; a source of laser beams configured to provide three orthogonal vapor-cell optical paths through the vapor-cell gas phase, to trap or image a population of cold atoms; and a magnetic-field source configured to generate magnetic fields within the vapor-cell region. Methods of use are also disclosed herein.Type: GrantFiled: July 6, 2016Date of Patent: September 12, 2017Assignee: HRL Laboratories, LLCInventors: Christopher S. Roper, Matthew T. Rakher, Logan D. Sorenson
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Patent number: 9713842Abstract: The present invention relates to a method for coating primary particles with secondary particles using dual asymmetric centrifugal forces wherein, the primary particles comprise (a) at least one metal, or (b) at least one ceramic; the secondary particles comprise at least one metal or salt thereof; and wherein the secondary particles are more malleable than the primary particles.Type: GrantFiled: November 20, 2009Date of Patent: July 25, 2017Assignee: ANGLO PLATINUM MARKETING LIMITEDInventors: Hugh Gavin Charles Hamilton, Debra Sarah Jones
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Patent number: 9605543Abstract: A turbine engine blade made of composite material including fiber reinforcement densified by a matrix is fabricated by a method including: performing three-dimensional weaving to make a single-piece fiber blank; shaping the fiber blank to obtain a single-piece fiber preform having a first portion forming a preform for a blade root and an airfoil, at least one second portion forming a preform for a blade inner platform or for wipers of a blade outer platform, and at least one third portion forming a preform for reinforcing a blade inner platform or for overhangs of a blade outer platform; and densifying the fiber preform with a matrix to obtain a composite material blade having fiber reinforcement constituted by the preform and densified by the matrix, and forming a single piece with an inner and/or outer platform incorporated therein.Type: GrantFiled: December 10, 2010Date of Patent: March 28, 2017Assignees: SNECMA, HERAKLESInventors: Romain Nunez, Stephane Blanchard, Guillaume Renon, Dominique Coupe, Clement Roussille
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Patent number: 9437564Abstract: A structure comprises a passivation layer formed over a semiconductor substrate, a connection pad enclosed by the passivation layer, a redistribution layer formed over the passivation layer, wherein the redistribution layer is connected to the connection pad, a bump formed over the redistribution layer, wherein the bump is connected to the redistribution layer and a molding compound layer formed over the redistribution layer. The molding compound layer comprises a flat portion, wherein a bottom portion of the bump is embedded in the flat portion of the molding compound layer and a protruding portion, wherein a middle portion of the bump is surrounded by the protruding portion of the molding compound layer.Type: GrantFiled: July 9, 2013Date of Patent: September 6, 2016Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wen-Hsiung Lu, Hsuan-Ting Kuo, Cheng-Ting Chen, Ai-Tee Ang, Ming-Da Cheng, Chung-Shi Liu
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Patent number: 9275785Abstract: Disclosed herein are a multilayered power inductor including an inner electrode coil pattern formed on a ceramic substrate; an outer electrode layer; and a magnetic layer made of a metal powder insulated along a grain interface of the metal powder included in a part or the whole of a chip, and a method for preparing the same. According to the exemplary embodiments of the present invention, the magnetic layer made of the metal powder insulation-coated with the ceramic material along the grain interface of the magnetic metal powder can be used for a part or the whole of the chip, thereby increasing the filling ratio of the magnetic metal powder to 90% within the magnetic layer. Therefore, a high-capacity power inductor can be implemented to effectively improve efficiency characteristics.Type: GrantFiled: November 12, 2013Date of Patent: March 1, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventor: Sung Sik Shin
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Patent number: 9233420Abstract: The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent.Type: GrantFiled: January 17, 2014Date of Patent: January 12, 2016Assignee: HARIMA CHEMICALS, INC.Inventors: Daisuke Itoh, Masayuki Ueda, Noriaki Hata, Yorishige Matsuba
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Patent number: 9214442Abstract: In a power semiconductor module, a copper-containing first soldering partner, a connection layer, and a copper-containing second soldering partner are arranged successively and fixedly connected with one another. The connection layer has a portion of intermetallic copper-tin phases of at least 90% by weight. For producing such a power semiconductor module the soldering partners and the solder arranged there between are pressed against one another with a predefined pressure and the solder is melted. After termination of a predefined period of time the diffused copper and the tin from the liquid solder form a connection layer comprising intermetallic copper-tin phases, the portion of which is at least 90% by weight of the connection layer created from the solder layer.Type: GrantFiled: March 19, 2007Date of Patent: December 15, 2015Assignee: Infineon Technologies AGInventors: Karsten Guth, Holger Torwesten
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Patent number: 9168587Abstract: Provided are fine coated copper particles, which are fine with a narrow particle size distribution and superior storability, and which can be sintered at low temperatures. Specifically provided is a method for producing fine coated copper particles which is characterized by including: a step of mixing a copper-containing compound and a reducing compound to form a composite compound that is capable of thermal decomposition to generate copper in an alkylamine; and a step of heating the composite compound in the alkylamine to produce fine copper particles coated with the alkylamine.Type: GrantFiled: March 26, 2013Date of Patent: October 27, 2015Assignee: YAMAGATA UNIVERSITYInventor: Masato Kurihara
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Patent number: 9149869Abstract: A process for producing a mixed powder for powder metallurgy in which graphite segregation can be prevented and which has satisfactory flowability and brings about satisfactory lubricating properties, the process comprising: selecting an organic binder which, when the solubility of an organic lubricant in a given organic solvent at a given temperature is taken as 1, has a solubility in the same solvent at the same temperature of 2 or higher; mixing the organic lubricant and the organic binder with the given organic solvent together with an iron powder to prepare an iron-powder slurry in which the organic lubricant and the organic binder have been dissolved in the organic solvent; and removing the organic solvent from the iron-powder slurry by vaporization to precipitate the organic lubricant and the organic binder in this order.Type: GrantFiled: November 14, 2011Date of Patent: October 6, 2015Assignee: Kobe Steel, Ltd.Inventors: Hironori Suzuki, Shinya Arima
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Patent number: 9153367Abstract: Magnetic iron nitride nanoparticles, such as Fe16N2 nanoparticles, are made by subjecting iron nanoparticles synthesized from iron oxide or iron carbonyl precursor to a solid-gas reaction with a nitrogen-containing gas.Type: GrantFiled: September 16, 2013Date of Patent: October 6, 2015Assignee: STC.UNMInventor: Leisha M. Armijo
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Patent number: 9105947Abstract: To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by LaxReyMg1-x-yNin-m-vAlmTv (Re: rare earth element(s) including Y; T: Co, Mn, Zn; 0.17?x?0.64, 3.5?n?3.8, 0.06?m?0.22, v?0), and a main phase of an A5B19 type crystal structure. A ratio of X/Y of the concentration ratio X of Al to Ni in a surface layer and the concentration ratio Y of Al to Ni in a bulk layer is 0.36?X/Y?0.85. An alkaline storage battery includes the hydrogen storage alloy in its negative electrode. An alkaline storage battery system performs partial charge and discharge control.Type: GrantFiled: March 18, 2011Date of Patent: August 11, 2015Assignee: SANYO Electric Co., Ltd.Inventors: Hiromasa Sugii, Makoto Ochi, Shuuhei Yoshida, Yoshinobu Katayama, Kazuhiro Kitaoka, Masao Takee
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Publication number: 20150144849Abstract: The disclosed composite copper particle includes a core particle including copper, and a coating layer including a copper-tin alloy and formed on the surface of the core particle, the composite copper particle having a particle diameter at 50% cumulative volume in the particle size distribution of 0.1 to 10.0 ?m. The alloy is preferably CuSn. The ratio of tin to the the composite copper particle is preferably 3.0 to 12.0 mass %. The composite copper particle is suitably obtained by a method including a step of mixing a reducing agent for tin and an aqueous slurry containing a tin source compound and core particles which include copper, to form a coating layer including a copper-tin alloy on a surface of the core particles.Type: ApplicationFiled: June 19, 2013Publication date: May 28, 2015Applicant: Mitsui Mining & Smelting Co., Ltd.Inventors: Toshihiro Kohira, Takafumi Sasaki, Shinji Aoki, Takahiko Sakaue
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Publication number: 20150093589Abstract: A composite particle comprises a core, a shielding layer deposited on the core, and further comprises an interlayer region formed at an interface of the shielding layer and the core, the interlayer region having a reactivity less than that of the core, and the shielding layer having a reactivity less than that of the interlayer region, a metallic layer not identical to the shielding layer and deposited on the shielding layer, the metallic layer having a reactivity less than that of the core, and optionally, an adhesion metal layer deposited on the metallic layer, wherein the composite particles have a corrosion rate of about 0.1 to about 450 mg/cm2/hour using an aqueous 3 wt % KCl solution at 200° F. An article comprises composite particles, wherein has a corrosion rates of about 0.1 to about 450 mg/cm2/hour using an aqueous 3 wt % KCl solution at 200° F.Type: ApplicationFiled: October 21, 2014Publication date: April 2, 2015Applicant: BAKER HUGHES INCORPORATEDInventors: Oleg A. Mazyar, Michael H. Johnson, Randall V. Guest, Nicholas Carrejo, Wayne R. Furlan, Sean L. Gaudette
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Publication number: 20150047878Abstract: An electroconductive particle including an electroconductive layer made of copper or a copper alloy, or silver or a silver alloy, and a surface layer made of nickel or a nickel alloy and formed on the electroconductive layer is used. By use of the electroconductive particle obtained such that a surface is coated with hard nickel, and an inner side of a nickel layer is copper or silver having low specific resistance, low resistance and high reliability can be obtained. An electroconductive particle having low resistance and high reliability, a circuit connecting material containing electroconductive particles, a mounting body using a circuit connecting material, and a method for manufacturing a mounting body are provided.Type: ApplicationFiled: March 22, 2013Publication date: February 19, 2015Inventors: Takeshi Tamaki, Yoshito Tanaka
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Publication number: 20150017465Abstract: The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 ?m and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.Type: ApplicationFiled: February 22, 2013Publication date: January 15, 2015Inventors: Yoshihiro Okabe, Kenya Ito, Shuuji Okada, Masamu Nishimoto, Akihiro Murakami, Shintaro Ishikawa
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Patent number: 8920934Abstract: Hybrid solder for solder balls and filled paste are described. A solder ball may be formed of a droplet of higher temperature solder and a coating of lower temperature solder. This may be used with a solder paste that has an adhesive and a filler of low temperature solder particles, the filler comprising less than 80 weight percent of the paste. The solder balls and paste may be used in soldering packages for microelectronic devices. A package may be formed by applying a solder paste to a bond pad of a substrate, attaching a hybrid solder ball to each pad using the paste, and attaching the package substrate to a microelectronic substrate by reflowing the hybrid solder balls to form a hybrid solder interconnect.Type: GrantFiled: March 29, 2013Date of Patent: December 30, 2014Assignee: Intel CorporationInventors: Hongjin Jiang, Arun Kumar C. Nallani, Rajen S. Sidhu, Martha A. Dudek, Weihua Tang
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Patent number: 8916268Abstract: An iron powder for dust cores is provided which can be formed into a dust core having a high resistivity and having a low iron loss without degrading the mechanical strength. The iron powder for dust cores includes an iron powder and an oxide film on the surface thereof, wherein the oxide film is composed of a Si-based oxide in which the ratio of Si to Fe satisfies Si/Fe?0.8 on an atomic number basis.Type: GrantFiled: December 11, 2008Date of Patent: December 23, 2014Assignees: JFE Steel Corporation, Toyota Jidosha Kabushiki KaishaInventors: Takashi Kawano, Noriko Makiishi, Tatsuhiko Hiratani, Naomichi Nakamura, Yusuke Oishi, Eisuke Hoshina, Toshiya Yamaguchi, Daisuke Okamoto, Takeshi Hattori
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Publication number: 20140356642Abstract: A metallic magnetic powder where a primary particle of each metallic magnetic particle is a powder without forming an aggregate, and a method of making the same that includes manufacturing a metallic magnetic powder constituted of metallic magnetic particles, containing a metallic magnetic phase, with Fe, or Fe and Co as main components, rare earth elements or yttrium and one or more non-magnetic components removing the non-magnetic component from the metallic magnetic with a reducing agent, while making a complexing agent exist for forming a complex with the non-magnetic component in water; oxidizing the metallic magnetic particle with the non-magnetic component removed; substituting water adhered to the oxidized metallic magnetic particle with an organic solvent; and coating the surface of the metallic magnetic particle with an organic matter different from the organic solvent, while maintaining a wet condition of the metallic magnetic particle with the organic solvent adhered thereto.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicants: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Dong Chul PYUN, Heemin YOO, Hirohisa OMOTO, Takayuki YOSHIDA
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Publication number: 20140315039Abstract: A method for finely powdering tungsten powder, which includes dispersing tungsten powder in an aqueous solution containing an oxidizing agent to form an oxide film in the surface of the tungsten powder and removing the oxide film with an alkaline aqueous solution. Also disclosed is a method for producing fine tungsten powder, which includes obtaining tungsten powder having an average particle size of 0.05 to 0.5 ?m by a process including the above method for finely powdering. Also disclosed is a tungsten powder having an average particle size of 0.05 to 0.5 ?m, in which the dMS value (product of an average particle size d (?m), true density M (g/cm3) and BET specific surface area S (m2/g)) is within the range of 6±0.8.Type: ApplicationFiled: August 29, 2012Publication date: October 23, 2014Applicant: SHOWA DENKO K.K.Inventors: Kazumi Naito, Shoji Yabe
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Publication number: 20140308537Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.Type: ApplicationFiled: May 10, 2013Publication date: October 16, 2014Inventors: Jun Yeon Cho, Sang Hoon Kim, Gyo Hyun Hwang, Kwanghyun Kim
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Publication number: 20140295200Abstract: Silver-plated copper particles in which any exposed copper not plated with silver are coated with a polymer or with a chelating compound capable of preventing oxidation of the exposed copper. A method for preventing oxidation of any exposed copper on silver-plated copper particles and for improving the conductivity of silver-plated copper particles comprises coating a polymer or a copper-chelating compound onto the exposed copper on the silver-plated copper particles.Type: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Jose Garcia-Miralles, Jie Cao, Allison Vue Xiao, Ciaran McArdle, David Farrell
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Patent number: 8840800Abstract: A magnetic material is disclosed, which includes magnetic particles containing at least one magnetic metal selected from the group including Fe, Co and Ni, and at least one non-magnetic metal selected from Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, rare earth elements, Ba and Sr; a first coating layer of a first oxide that covers at least a portion of the magnetic particles; oxide particles of a second oxide that is present between the magnetic particles and constitutes an eutectic reaction system with the first oxide; and an oxide phase that is present between the magnetic particles and has an eutectic structure of the first oxide and the second oxide.Type: GrantFiled: August 29, 2012Date of Patent: September 23, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Tomohiro Suetsuna, Seiichi Suenaga, Toshihide Takahashi, Tomoko Eguchi, Koichi Harada, Yasuyuki Hotta