Patents Examined by Ngoclan Mai
  • Patent number: 8177878
    Abstract: A bonding material including a meltable joining material and a plurality of heterostructures distributed throughout the meltable joining material, the heterostructures comprising at least a first material and a second material capable of conducting a self-sustaining exothermic reaction upon initiation by an external energy to generate heat sufficient to melt the meltable joining material.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: May 15, 2012
    Assignee: Infineon Technologies AG
    Inventors: Alexander Heinrich, Thorsten Scharf, Edmund Riedl, Steffan Jordan
  • Patent number: 8163232
    Abstract: A method for manufacturing functionally graded cemented tungsten carbide with hard and wear-resistant surface and tough core is described. The said functionally graded cemented tungsten carbide (WC—Co) has a surface layer having a reduced amount of cobalt. Such a hard surface and tough core structure is an example of functionally graded materials in which mechanical properties are optimized by the unique combination of wear-resistance and toughness. WC—Co with reduced-cobalt surface layer may be fabricated through a carburization heat treatment process following conventional liquid phase sintering. The graded WC—Co thus obtained contains no brittle ? phase.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: April 24, 2012
    Assignee: University of Utah Research Foundation
    Inventors: Zhigang Zak Fang, Peng Fan, Jun Guo
  • Patent number: 8152687
    Abstract: The use of powder metal components in a variator is disclosed. Traction fluid of various sorts may be used in the variators, not just high performance synthetics or application specific lubricants.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: April 10, 2012
    Assignee: Torotrack (Development) Limited
    Inventors: Richard Ruebusch, Adrian Lee
  • Patent number: 8133297
    Abstract: The invention relates to novel pre-alloyed metal powders a method for production and use thereof.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: March 13, 2012
    Assignee: H.C. Starck GmbH
    Inventors: Bernd Mende, Gerhard Gille, Ines Lamprecht
  • Patent number: 8119061
    Abstract: A method for attaching a metal structure to a dental coping having opposite sides in the preparation or repair of a dental restoration comprising the steps of: (1) forming a dental material composition comprising high-fusing temperature metal particles in a range of between 1-10 weight percent with the high-fusing temperature metal particles having at least 30% thereof selected from the platinum group of metals, low fusing temperature metal particles having a melting temperature below the melting temperature of the high-fusing particles with the low fusing temperature metal particles being present above at least about 90 weight percent of the total composition and being composed primarily of gold, and a small measure of borate fluxes in a range of between 0.1 to 2.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: February 21, 2012
    Inventors: Itzhak Shoher, Aharon Whiteman
  • Patent number: 8110020
    Abstract: An annealed pre-alloyed water atomised iron-based powder suitable for the production of pressed and sintered components having high wear resistance is provided. The iron-based powder comprises 10-below 18% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W, V and Nb, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large M23C6-type carbides in combination with M7C3-type carbides. A method for production of the iron-based powder, a method for producing a pressed and sintered component having high wear resistance, and a component having high wear resistance are provided.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 7, 2012
    Assignee: Höganäs AB (PUBL)
    Inventors: Ola Bergman, Paul Dudfield Nurthen
  • Patent number: 8105414
    Abstract: A composition may have metal nanoparticles having a diameter of 20 nanometers or less and have a fusion temperature of less than about 220° C. A method of fabricating the metal nanoparticles may include preparing a solvent, adding a precursor with a metal to the solvent, adding a first surfactant, mixing in a reducing agent, and adding in a second surfactant to stop nanoparticle formation. Copper and/or aluminum nanoparticle compositions formed may be used for lead-free soldering of electronic components to circuit boards. A composition may include nanoparticles, which may have a copper nanocore, an amorphous aluminum shell and an organic surfactant coating. A composition may have copper or aluminum nanoparticles. About 30-50% of the copper or aluminum nanoparticles may have a diameter of 20 nanometers or less, and the remaining 70-50% of the copper or aluminum nanoparticles may have a diameter greater than 20 nanometers.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 31, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Alfred A. Zinn
  • Patent number: 8083831
    Abstract: The present invention relates to a lightweight, anti-scratch and fracture resistant material for use in manufacture of jewelry prepared by sintering a powered mixture consisting essentially of 20% by weight of titanium carbide, 25% by weight of tungsten carbide, 35% by weight of titanium nitride, and balance being a binder consisting essentially of nickel, molybdenum and cobalt.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: December 27, 2011
    Assignee: BTR Limited
    Inventor: Zhijian Xia
  • Patent number: 8080201
    Abstract: There is provided a method for producing sputtering target materials which are used for a Ni—W based interlayer in a perpendicular magnetic recording medium. In this producing method, a Ni—W based alloy powder is prepared as a raw material powder. The alloy powder comprises 5 to 20 at % of W and the balance Ni and unavoidable impurities and is produced by gas atomization. The raw material powder is consolidated at a temperature ranging from 900 to 1150° C. This producing method makes it possible to significantly restrain expansion of the powder-filled billet in the consolidation step, thus efficiently producing Ni—W based sputtering target materials with stable qualities.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: December 20, 2011
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Toshiyuki Sawada, Akihiko Yanagitani
  • Patent number: 8075666
    Abstract: A process for treating particulate material containing heavy metal generated during a manufacturing process is disclosed. The process includes providing particulate material containing heavy metal within an enclosed area and mixing an additive of calcium silicate forming material with the particulate material in the enclosed area to create an additive-particulate material. The additive-particulate material can be passed into a waste collection device located downstream of the enclosed area. The calcium silicate forming material can be provided as particles with a particle size of minus 50 to plus 325 mesh. An additional aspect of the invention is an additive for use in such a process for treating metallic oxide impregnated dust, which has a particle size of plus 325 mesh and consists essentially of calcium silicate forming material.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: December 13, 2011
    Assignee: CBL Industrial Services, Inc.
    Inventors: Redmond R. Clark, James A. Lively, Christopher D. Scott
  • Patent number: 8075662
    Abstract: A nickel braze alloy composition includes a blend of a first nickel alloy and a second nickel alloy. The first nickel alloy includes about 4.75 wt %-10.5 wt % of chromium, about 5.5 wt %-6.7 wt % of aluminum, up to about 13 wt % cobalt, about 3.75 wt %-9.0 wt % of tantalum, about 1.3 wt %-2.25 wt % of molybdenum, about 3.0 wt %-6.8 wt % of tungsten, about 2.6 wt %-3.25 wt % of rhenium, up to about 0.02 wt % of boron, about 0.05 wt %-2.0 wt % of hafnium, up to about 0.14 wt % of carbon, up to about 0.35 wt % of zirconium, and a balance of nickel. The second nickel alloy includes about 21.25 wt %-22.75 wt % of chromium, about 5.7 wt %-6.3 wt % of aluminum, about 11.5 wt %-12.5 wt % of cobalt, about 5.7 wt %-6.3 wt % of silicon, boron in an amount no greater than 1.0 wt %, and a balance of nickel.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: December 13, 2011
    Assignee: United Technologies Corporation
    Inventors: Michael Minor, Paul M. Pellet, Michael L. Miller
  • Patent number: 8075661
    Abstract: An ultra-hard composite material and a method for manufacturing the same, including mixing a metal carbide powder and a multi-element high-entropy alloy powder to form a mixture, green compacting the mixture, and sintering the mixture to form the ultra-hard composite material. The described multi-element high-entropy alloy consists of five to eleven principal elements, with every principal element occupying a 5 to 35 molar percentage of the alloy.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: December 13, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-San Chen, Chih-Chao Yang, Jien-Wei Yeh, Chin-Te Huang
  • Patent number: 8075838
    Abstract: A compression molding which is high in both dimensional accuracy and mechanical strength is difficult to manufacture by a powder molding process. Especially, a molding including a soft magnetic material with high soft magnetic properties is difficult to manufacture. A composite metal molding according to the present invention includes metal particles and the carbide of a resin intervening among the particles. It is manufactured by coating metal particles with a resin, molding the prepared molding material under pressure into a predetermined shape, and heating the prepared pressurized preform to calcine the resin and weld mutually the particles. The carbide of the resin has a weight ratio of 0.001 to 2% to the metal particles when the particles have their proportion expressed as 100. The particles have a weld ratio of 10 to 80%. The particles preferably contain a soft magnetic material and the resin is preferably a furan resin.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 13, 2011
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Junji Hamana, Isamu Kawada, Naoaki Maruyama
  • Patent number: 8074750
    Abstract: Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodiments, the silicon carbide particles comprise an ABC-SiC material. Methods of manufacturing such tools include providing a plurality of silicon carbide particles within a matrix material. Optionally, the silicon carbide particles may comprise ABC-SiC material, and the ABC-SiC material may be toughened to increase a fracture toughness exhibited by the ABC-SiC material. In some methods, at least one of an infiltration process and a powder compaction and consolidation process may be employed.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: December 13, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Heeman Choe, John H. Stevens, James L. Overstreet, Jimmy W. Eason, James C. Westhoff
  • Patent number: 8066861
    Abstract: A method for producing metal powder is provided the comprising supplying a molten bath containing a reducing agent, contacting a metal oxide with the molten bath for a time and at a temperature sufficient to reduce the metal in the metal oxide to elemental metal and produce free oxygen; and isolating the elemental metal from the molten bath.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: November 29, 2011
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Jong-Hee Park
  • Patent number: 8066795
    Abstract: A thermal spray powder including cermet particles, each of which contains metal containing at least one selected from the group consisting of cobalt, chrome, and nickel, and tungsten carbide. The ratio of the summed weight of cermet particles having a particle size of 25 ?m or more in the thermal spray powder with respect to the summed weight of the entire cermet particles in the thermal spray powder is 0.5 to 15%. A thermal spray coating formed from the thermal spray powder is suitable for the formation of a tungsten carbide-based cermet thermal spray coating for use in rolls such as corrugated rolls.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: November 29, 2011
    Assignee: Fujimi Incorporated
    Inventors: Hiroaki Mizuno, Junya Kitamura
  • Patent number: 8066937
    Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: November 29, 2011
    Assignee: Nano Materials International Corporation
    Inventors: Sion M. Pickard, James C. Withers, Raouf O. Loutfy
  • Patent number: 8057571
    Abstract: There is disclosed a cemented carbide tool containing tungsten carbide, titanium carbide, nickel and cobalt, molybdenum and chromium. The composition of the materials provides a good resistance to corrosion as well as high hardness and wear resistance. These properties are particularly interesting for the manufacture of tools for coldforming operations. Cold forming tools made with these materials have steady performance over a long period of time.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 15, 2011
    Assignee: Sandvik Intellectual Property AB
    Inventors: Emmanuel Pauty, Håkan Engström, Victor Rimbau, Gerard Vasco i Salas
  • Patent number: 8052773
    Abstract: An object of this invention is to provide a manufacturing method of metal nanowire in which a length and a diameter can be uniformly controlled, metal nanowire having excellent form uniformity, and a transparent electric conductor exhibiting excellent conductivity and transparency by employing metal nanowire having excellent conductivity and transparency. A manufacturing method of metal nanowire which reduces a metal ion in a solution to form metal particles having a wire-form, wherein a nucleus forming process and a particle growth process after said nucleus forming process are provided, and said nucleus forming process reduces a metal ion to form reduced metal, which is directly precipitated on the surface of said particles formed in the said nucleus forming process or on the surface of particles having grown from said nucleus particles during a growth process, whereby metal particles are formed.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: November 8, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventor: Hiroshi Takada
  • Patent number: 8043555
    Abstract: An earth-boring bit has a steel body and bearing pin for rotatably supporting a cone. The cone has an exterior surface containing rows of cutting elements. The cone and cutting elements are formed of cemented tungsten carbide. The cone may be manufactured by applying pressure to a mixture of hard particles and metal alloy powder to form a billet, then machining the billet to a desired over-sized conical shaped product. Then the conical-shaped product is liquid-phase sintered to a desired density, which causes shrinking to the desired final shape.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: October 25, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Redd H. Smith, Trevor Burgess, Jimmy W. Eason