Composite Powder (e.g., Coated, Etc.) Patents (Class 428/570)
  • Patent number: 11305344
    Abstract: 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: Grant
    Filed: October 25, 2017
    Date of Patent: April 19, 2022
    Assignee: Council of Scientific & Industrial Research
    Inventors: Vinod Chathakudath Prabhakaran, Vysakh Alengattil Bharathan
  • Patent number: 11292088
    Abstract: 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: Grant
    Filed: October 22, 2018
    Date of Patent: April 5, 2022
    Assignee: Oerlikon Metco (US) Inc.
    Inventor: Andrew Bell
  • Patent number: 11052354
    Abstract: 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: Grant
    Filed: December 14, 2017
    Date of Patent: July 6, 2021
    Assignee: MONASH UNIVERSITY
    Inventors: Huanting Wang, Seungju Kim
  • Patent number: 10954168
    Abstract: 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: Grant
    Filed: September 21, 2018
    Date of Patent: March 23, 2021
    Assignee: General Electric Company
    Inventors: Krishan Lal Luthra, Gregory Scot Corman, Badri Narayan Ramamurthi
  • Patent number: 10895545
    Abstract: 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: Grant
    Filed: September 26, 2014
    Date of Patent: January 19, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Michael J. Birnkrant, Wayde R. Schmidt
  • Patent number: 10867730
    Abstract: 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: Grant
    Filed: May 8, 2018
    Date of Patent: December 15, 2020
    Assignee: Case Western Reserve University
    Inventor: David Matthiesen
  • Patent number: 10784053
    Abstract: 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: Grant
    Filed: June 21, 2019
    Date of Patent: September 22, 2020
    Inventor: Ivan Araujo Dayrell
  • Patent number: 10774669
    Abstract: 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: Grant
    Filed: October 25, 2018
    Date of Patent: September 15, 2020
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • Patent number: 10745528
    Abstract: 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: Grant
    Filed: December 13, 2018
    Date of Patent: August 18, 2020
    Assignee: The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Ho-Suk Choi, Quoc Chinh Tran
  • Patent number: 10714273
    Abstract: 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: Grant
    Filed: June 21, 2019
    Date of Patent: July 14, 2020
    Inventor: Ivan Araujo Dayrell
  • Patent number: 10679780
    Abstract: 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: Grant
    Filed: January 8, 2018
    Date of Patent: June 9, 2020
    Assignee: Shenzhen Sunlord Electronics Co., Ltd.
    Inventors: Min Tan, Min Nie, Youyun Li
  • Patent number: 10569329
    Abstract: 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: Grant
    Filed: June 6, 2017
    Date of Patent: February 25, 2020
    Assignee: Kuprion Inc.
    Inventor: Alfred A. Zinn
  • Patent number: 10458505
    Abstract: 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: Grant
    Filed: March 13, 2015
    Date of Patent: October 29, 2019
    Assignee: KOMATSU LTD.
    Inventor: Toshiyuki Iseki
  • Patent number: 10373765
    Abstract: 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: Grant
    Filed: May 22, 2017
    Date of Patent: August 6, 2019
    Inventor: Ivan Araujo Dayrell
  • Patent number: 10106755
    Abstract: 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: Grant
    Filed: August 8, 2016
    Date of Patent: October 23, 2018
    Inventor: Thomas R. Horst
  • Patent number: 10020435
    Abstract: 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: Grant
    Filed: February 20, 2014
    Date of Patent: July 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Weon-ho Shin, Jong wook Roh, Kyu-hyoung Lee, Dae-jin Yang, Sang-il Kim
  • Patent number: 9878122
    Abstract: 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: Grant
    Filed: October 25, 2011
    Date of Patent: January 30, 2018
    Assignee: Battelle Memorial Institute
    Inventors: Vladimir B. Mikheev, William C. Forsythe, Benjamin N. Swita
  • Patent number: 9765249
    Abstract: 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: Grant
    Filed: July 18, 2014
    Date of Patent: September 19, 2017
    Assignee: 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
  • Patent number: 9763314
    Abstract: 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: Grant
    Filed: July 6, 2016
    Date of Patent: September 12, 2017
    Assignee: HRL Laboratories, LLC
    Inventors: Christopher S. Roper, Matthew T. Rakher, Logan D. Sorenson
  • Patent number: 9713842
    Abstract: 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: Grant
    Filed: November 20, 2009
    Date of Patent: July 25, 2017
    Assignee: ANGLO PLATINUM MARKETING LIMITED
    Inventors: Hugh Gavin Charles Hamilton, Debra Sarah Jones
  • Patent number: 9605543
    Abstract: 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: Grant
    Filed: December 10, 2010
    Date of Patent: March 28, 2017
    Assignees: SNECMA, HERAKLES
    Inventors: Romain Nunez, Stephane Blanchard, Guillaume Renon, Dominique Coupe, Clement Roussille
  • Patent number: 9437564
    Abstract: 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: Grant
    Filed: July 9, 2013
    Date of Patent: September 6, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Hsiung Lu, Hsuan-Ting Kuo, Cheng-Ting Chen, Ai-Tee Ang, Ming-Da Cheng, Chung-Shi Liu
  • Patent number: 9275785
    Abstract: 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: Grant
    Filed: November 12, 2013
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Sung Sik Shin
  • Patent number: 9233420
    Abstract: 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: Grant
    Filed: January 17, 2014
    Date of Patent: January 12, 2016
    Assignee: HARIMA CHEMICALS, INC.
    Inventors: Daisuke Itoh, Masayuki Ueda, Noriaki Hata, Yorishige Matsuba
  • Patent number: 9214442
    Abstract: 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: Grant
    Filed: March 19, 2007
    Date of Patent: December 15, 2015
    Assignee: Infineon Technologies AG
    Inventors: Karsten Guth, Holger Torwesten
  • Patent number: 9168587
    Abstract: 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: Grant
    Filed: March 26, 2013
    Date of Patent: October 27, 2015
    Assignee: YAMAGATA UNIVERSITY
    Inventor: Masato Kurihara
  • Patent number: 9149869
    Abstract: 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: Grant
    Filed: November 14, 2011
    Date of Patent: October 6, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Hironori Suzuki, Shinya Arima
  • Patent number: 9153367
    Abstract: 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: Grant
    Filed: September 16, 2013
    Date of Patent: October 6, 2015
    Assignee: STC.UNM
    Inventor: Leisha M. Armijo
  • Patent number: 9105947
    Abstract: 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: Grant
    Filed: March 18, 2011
    Date of Patent: August 11, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiromasa Sugii, Makoto Ochi, Shuuhei Yoshida, Yoshinobu Katayama, Kazuhiro Kitaoka, Masao Takee
  • Publication number: 20150144849
    Abstract: 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: Application
    Filed: June 19, 2013
    Publication date: May 28, 2015
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshihiro Kohira, Takafumi Sasaki, Shinji Aoki, Takahiko Sakaue
  • Publication number: 20150093589
    Abstract: 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: Application
    Filed: October 21, 2014
    Publication date: April 2, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Michael H. Johnson, Randall V. Guest, Nicholas Carrejo, Wayne R. Furlan, Sean L. Gaudette
  • Publication number: 20150047878
    Abstract: 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: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Inventors: Takeshi Tamaki, Yoshito Tanaka
  • Publication number: 20150017465
    Abstract: 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: Application
    Filed: February 22, 2013
    Publication date: January 15, 2015
    Inventors: Yoshihiro Okabe, Kenya Ito, Shuuji Okada, Masamu Nishimoto, Akihiro Murakami, Shintaro Ishikawa
  • Patent number: 8920934
    Abstract: 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: Grant
    Filed: March 29, 2013
    Date of Patent: December 30, 2014
    Assignee: Intel Corporation
    Inventors: Hongjin Jiang, Arun Kumar C. Nallani, Rajen S. Sidhu, Martha A. Dudek, Weihua Tang
  • Patent number: 8916268
    Abstract: 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: Grant
    Filed: December 11, 2008
    Date of Patent: December 23, 2014
    Assignees: JFE Steel Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawano, Noriko Makiishi, Tatsuhiko Hiratani, Naomichi Nakamura, Yusuke Oishi, Eisuke Hoshina, Toshiya Yamaguchi, Daisuke Okamoto, Takeshi Hattori
  • Publication number: 20140356642
    Abstract: 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: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Applicants: 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
  • Publication number: 20140315039
    Abstract: 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: Application
    Filed: August 29, 2012
    Publication date: October 23, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazumi Naito, Shoji Yabe
  • Publication number: 20140308537
    Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.
    Type: Application
    Filed: May 10, 2013
    Publication date: October 16, 2014
    Inventors: Jun Yeon Cho, Sang Hoon Kim, Gyo Hyun Hwang, Kwanghyun Kim
  • Publication number: 20140295200
    Abstract: 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: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Jose Garcia-Miralles, Jie Cao, Allison Vue Xiao, Ciaran McArdle, David Farrell
  • Patent number: 8840800
    Abstract: 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: Grant
    Filed: August 29, 2012
    Date of Patent: September 23, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Suetsuna, Seiichi Suenaga, Toshihide Takahashi, Tomoko Eguchi, Koichi Harada, Yasuyuki Hotta
  • Publication number: 20140264142
    Abstract: A method is described for inserting or dispersing quartz within a substrate containing polymers polarizable by an electromagnetic field having electrical resistivity, from an insulator to conductor or vice versa, modifiable by said field. The method involves dispersing in the substrate particles having a sandwich structure including two conductive layers and a layer with piezoelectric characteristics in the middle.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Applicant: SPF LOGICA S.R.L.
    Inventors: Giorgio Eberle, Fabio Cappelli, Giuseppe Paronetto
  • Publication number: 20140272171
    Abstract: The invention describes a method for producing ternary and binary ceramic powders and their thermal spraying capable of manufacturing thermal sprayed coatings with superior properties. Powder contain at least 30% by weight ternary ceramic, at least 20% by weight binary molybdenum borides, at least one of the binary borides of Cr, Fe, Ni, W and Co and a maximum of 10% by weight of nano and submicro-sized boron nitride. The primary crystal phase of the manufactured thermal sprayed coatings from these powders is a ternary ceramic, while the secondary phases are binary ceramics. The coatings have extremely high resistance against corrosion of molten metal, extremely thermal shock resistance and superior tribological properties at low and at high temperatures.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: MESOCOAT, INC.
    Inventors: Evelina VOGLI, Andrew J. SHERMAN, Curtis P. GLASGOW
  • Publication number: 20140272447
    Abstract: The present invention describes the use of nanoparticle interfaces to chemically process solid nanomaterials into ones with tailorable core-void-shell architectures. The internal void sizes are proportional to the nanoparticle size, the shell thickness and composition, and can be either symmetric or asymmetric depending on the nature of the interface, each of which is controlled by the process of making.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Syracuse University
    Inventors: Mathew M. Maye, Wenjie Wu
  • Publication number: 20140255716
    Abstract: Multi-metal particles, apparatuses and method of making same are provided. Specifically, the multi-metal particles are of nanometer dimensions and are prepared by spatially arranged electrodes configured to generate and maintain a plasma cloud.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Inventors: Donald G. Faulkner, Darren R. Burgess, David John Fennimore
  • Patent number: 8809678
    Abstract: CIGS absorber layers fabricated using coated semiconducting nanoparticles and/or quantum dots are disclosed. Core nanoparticles and/or quantum dots containing one or more elements from group 13 and/or IIIA and/or VIA may be coated with one or more layers containing elements group IB, IIIA or VIA. Using nanoparticles with a defined surface area, a layer thickness could be tuned to give the proper stoichiometric ratio, and/or crystal phase, and/or size, and/or shape. The coated nanoparticles could then be placed in a dispersant for use as an ink, paste, or paint. By appropriate coating of the core nanoparticles, the resulting coated nanoparticles can have the desired elements intermixed within the size scale of the nanoparticle, while the phase can be controlled by tuning the stoichiometry, and the stoichiometry of the coated nanoparticle may be tuned by controlling the thickness of the coating(s).
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: August 19, 2014
    Assignee: aeris CAPITAL Sustainable IP Ltd.
    Inventors: Brian M. Sager, Dong Yu, Matthew R. Robinson
  • Patent number: 8808567
    Abstract: A nanoparticle composition comprises a ferromagnetic or superparamagnetic metal nanoparticle, and a functionalized carbonaceous coating on a surface of the ferromagnetic or superparamagnetic metal nanoparticle. A magnetorheological fluid comprises the nanoparticle composition.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: August 19, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Terry R. Bussear, Michael H. Johnson
  • Publication number: 20140227548
    Abstract: There are disclosed energetic nanoparticle compositions and materials containing silicon and other energetic elements, and methods of manufacturing the same, including reacting silicon nanoparticles and unsaturated alkene or alkyne to form covalently bonded surface coatings passivated against surface oxidation, for combination with a fuel, explosive or oxidizer.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 14, 2014
    Inventor: James J. Myrick
  • Patent number: 8784702
    Abstract: Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Patent number: 8764876
    Abstract: PCBN material consisting essentially of cubic boron nitride (cBN) grains and binder material, the content of the cBN grains being at least 80 weight percent of the PCBN material; the binder material comprising greater than 50 weight percent Al and a combined content of at least 5 weight percent of an iron group element and a refractory element, the iron group element selected from the group consisting of Co, Fe, Ni and Mn, and the refractory element selected from the group consisting of W, Cr, V, Mo, Ta, Ti, Hf and Zr.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: July 1, 2014
    Assignee: Element Six Limited
    Inventor: Stefan Magnus Olof Persson
  • Patent number: 8758900
    Abstract: The present invention provides nanometer-size spherical particles. Each of the particles is made of at least one selected from the group consisting of a metal, an alloy, and a metal compound. The particles include one or both of a polycrystalline region and a single-crystalline region. The particles have a particle size of less than 1 ?m; and a sphericity of ?10% to +10%.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 24, 2014
    Assignee: Napra Co., Ltd.
    Inventors: Shigenobu Sekine, Yurina Sekine