Composite; I.e., Plural, Adjacent, Spatially Distinct Metal Components (e.g., Layers, Etc.) Patents (Class 428/548)
  • Patent number: 11904427
    Abstract: A method of manufacturing a rotary abrasive machining tool, the rotary abrasive machining tool including a hub and a plurality of abrasive segments mounted to the hub, the method including the steps of: mounting each abrasive segment on the hub; machining an abrading edge on each abrasive segment while the abrasive segment is mounted on the hub.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: February 20, 2024
    Assignee: ROLLS-ROYCE plc
    Inventors: Donka Novovic, Dragos A Axinte, Alessio Spampinato
  • Patent number: 11810885
    Abstract: A semiconductor element bonding structure capable of strongly bonding a semiconductor element and an object to be bonded and relaxing thermal stress caused by a difference in thermal expansion, by interposing metal particles and Ni between the semiconductor element and the object to be bonded, the metal particles having a lower hardness than Ni and having a micro-sized particle diameter. A plurality of metal particles 5 (aluminum (Al), for example) having a lower hardness than nickel (Ni) and having a micro-sized particle diameter are interposed between a semiconductor chip 3 and a substrate 2 to be bonded to the semiconductor chip 3, and the metal particles 5 are fixedly bonded by the nickel (Ni). Optionally, aluminum (Al) or an aluminum alloy (Al alloy) is used as the metal particles 5, and aluminum (Al) or an aluminum alloy (Al alloy) is used on the surface of the semiconductor chip 3 and/or the surface of the substrate 2.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: November 7, 2023
    Assignee: WASEDA UNIVERSITY
    Inventors: Kohei Tatsumi, Yasunori Tanaka
  • Patent number: 11742120
    Abstract: A two-step diffusion method for preparing high-performance dual-main-phase sintered mischmetal-iron-boron magnet belongs to the preparing technical field of rare earth permanent magnet materials. The compositions of the two main phase alloys are RE-Fe—B (RE is Nd or Pr) and (Nd, MM)-Fe—B (MM is mischmetal), respectively. First, PrHoFe strip-casting alloy is used as a diffusion source. Next, a PrHo-rich layer is uniformly coated on the surface of (Nd, MM)-Fe—B hydrogen decrepitation powders. The higher anisotropic fields of Pr2Fe14B and Ho2Fe14B are used to improve the coercivity. Then, the ZrCu strip-casting alloy is used as a diffusion source. A Zr-rich layer is uniformly coated on the surface of the powders after the first-step diffusion, which prevents the growth of the MM-rich main phase grains during the sintering process and the inter-diffusion between the two main phases, thus obtaining high coercivity.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: August 29, 2023
    Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Weiqiang Liu, Hao Chen, Ming Yue, Zhi Li, Yantao Yin, Yuqing Li, Hongguo Zhang
  • Patent number: 11724312
    Abstract: A manufacturing method for a three-dimensional molded object includes repeating formation of a material layer and formation of a solidified layer, the material layer being formed by spreading a metal material on a base plate and the solidified layer being formed by irradiating the material layer with a laser beam or an electron beam, thereby molding a solidified body which is a laminated solidified layer on the base plate; and subjecting the base plate and the solidified body after molding to a heat treatment.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: August 15, 2023
    Assignee: Sodick Co., Ltd.
    Inventor: Itaru Matsumoto
  • Patent number: 11674688
    Abstract: There is provided a gas turbine combustor which includes a burner component which is molded by 3D additive manufacturing and is optimized in material strength per part. The burner component includes a first part which is used within a first temperature range and/or a first stress range and a second part which is used within a second temperature range which is lower than the first temperature range and/or a second stress range which is lower than the first stress range, and a lamination speed at which a metal material is laminated on the first part by the 3D additive manufacturing is lower than a lamination speed at which the metal material is laminated on the second part.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: June 13, 2023
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Satoshi Kumagai, Yoshihide Wadayama, Shigenobu Eguchi
  • Patent number: 11649533
    Abstract: The iron alloy particle is a particle including an iron alloy. The particle includes multiple mixed-phase particles, each including nanocrystals of 10 nm or more and 100 nm or less (i.e., from 10 nm to 100 nm) in crystallite size and an amorphous phase; and a grain boundary layer between the mixed-phase particles. Also, the iron alloy has a composition containing Fe, Si, P, B, C, and Cu.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 16, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Manabu Nakano
  • Patent number: 11642870
    Abstract: A glass carrier-attached copper foil is provided that is suitable for production of a desired circuit mounting board ensuring electric conduction over the entire copper layer, reducing separation of the copper layer at the cut edge even if the copper foil is downsized, and having an intended circuit pattern with a fine pitch. The glass carrier-attached copper foil includes a glass carrier, a release layer provided on the glass carrier, and a copper layer provided on the release layer. The release layer has a function to enable release of the copper layer from the glass carrier. The glass carrier-attached copper foil has a plurality of releasable regions including the release layer and an unreleasable region not including the release layer. The unreleasable region has a pattern defining the releasable regions.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 9, 2023
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Rintaro Ishii
  • Patent number: 11557629
    Abstract: A spin orbit memory device includes a material layer stack on a spin orbit electrode. The material layer stack includes a magnetic tunnel junction (MTJ) and a synthetic antiferromagnetic (SAF) structure on the MTJ. The SAF structure includes a first magnet structure and a second magnet structure separated by an antiferromagnetic coupling layer. The first magnet structure includes a first magnet and a second magnet separated by a single layer of a non-magnetic material such as platinum. The second magnet structure includes a stack of bilayers, where each bilayer includes a layer of platinum on a layer of a magnetic material such.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 17, 2023
    Assignee: Intel Corporation
    Inventors: Kaan Oguz, Christopher Wiegand, Noriyuki Sato, Angeline Smith, Tanay Gosavi
  • Patent number: 11515281
    Abstract: There is provided a bonding material which forms a bonding portion between two objects, which material contains (1) first metal particles comprising a first metal and having a median particle diameter in the range of 20 nm to 1 ?m, and (2) second metal particles comprising, as a second metal, at least one alloy of Sn and at least one selected from Bi, In and Zn and having a melting point of not higher than 200° C.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: November 29, 2022
    Assignee: PANASONIC HOLDINGS CORPORATION
    Inventors: Akio Furusawa, Shinji Ishitani, Kiyohiro Hine
  • Patent number: 11497152
    Abstract: An electromagnetic wave shield film in which peeling off between a metal thin film and an adhesive layer is prevented and a printed wiring board employing the electromagnetic wave shield are provided. An electromagnetic wave shield film is formed by laminating at least a metal thin film and an adhesive layer in order, and the water vapor permeability of the electromagnetic wave shield film according to JISK7129 is 0.5 g/m2 per 24 hours or higher at a temperature of 80 degrees centigrade, a moisture of 95% RH, and a pressure difference of 1 atm.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: November 8, 2022
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventor: Masahiro Watanabe
  • Patent number: 11408476
    Abstract: A friction material comprises an Fe part which contains Fe as a main component, a coating layer formed on a surface of the Fe part, and a friction part formed on a surface of at least a part of the coating layer, and the coating layer comprises a first coating layer and a second coating layer which have a specific average thickness and a specific component in order from Fe part side, and in the second coating layer, in order of positions at which the thickness is 20%, 40%, 60% and 80% of the second coating layer from the side of the first coating layer to the side opposite thereto, a Cu content increases and a Ni content decreases.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 9, 2022
    Assignee: TUNGALOY CORPORATION
    Inventor: Mitsuo Kamei
  • Patent number: 11407202
    Abstract: This invention provides a roll-bonded laminate composed of a hard copper layer and a stainless steel layer, which is sufficient both in radiation performance and strength. A roll-bonded laminate 1A is composed of a copper layer 10A and a stainless steel layer 20A, in which thickness of the roll-bonded laminate 1A is 0.02 mm to 0.4 mm, hardness of the copper layer 10A is 70 Hv or higher, and 180° peel strength of the roll-bonded laminate 1A is 6 N/20 mm or more.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 9, 2022
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Yusuke Hashimoto, Teppei Kurokawa
  • Patent number: 11317548
    Abstract: An electromagnetic wave shield film in which peeling off between a metal thin film and an adhesive layer is prevented and a printed wiring board employing the electromagnetic wave shield are provided. An electromagnetic wave shield film is formed by laminating at least a metal thin film and an adhesive layer in order, and the water vapor permeability of the electromagnetic wave shield film according to JISK7129 is 0.5 g/m2 per 24 hours or higher at a temperature of 80 degrees centigrade, a moisture of 95% RH, and a pressure difference of 1 atm.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 26, 2022
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventor: Masahiro Watanabe
  • Patent number: 11267061
    Abstract: An article of manufacture comprises a first component having a first mating surface and a second component having a second mating surface. The first component may include an aperture having internal splines or gear teeth, and/or an outer perimeter having external splines or gear teeth. The first and second components are disposed such that a gap is provided between the first and second mating surfaces. Brazing material is disposed between the first and second mating surfaces so as to mechanically couple the first and second components. The first component may be made of a powdered metal or a non-powdered metal, and the second component may be made of the other of such two metals. In one embodiment, the first component may be a planetary carrier plate portion having internal splines and the second component may be a planetary carrier spider portion.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Dustin E. Eseltine, Elizabeth Chevalier, Austin M. Davis
  • Patent number: 11059102
    Abstract: A method for producing components from a duplex steel, and a component formed by the method, are provided. A powder-type duplex steel starting material including an austenitic phase and a ferritic phase is laser melted in successive layers to form a component. The melted and re-solidified component is then subjected to heat treatment to obtain solution annealing of the austenitic phase at a temperature range of between 850° C. and 1,100° C. for a predetermined dwell time, after which the component is cooled and the component has a grain size and grain size number G of at least 9 according to ASTM. The grain size and the grain size number G of the austenitic phase are influenced by the selection of the respective maximum temperature and/or the dwell time of the maximum temperature.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 13, 2021
    Assignee: KSB SE & Co. KGaA
    Inventors: Alexander Boehm, Stephan Braun, Holger Rauner, Bernd Schramm, Adrian Stein
  • Patent number: 10940532
    Abstract: The present disclosure provides a metal-ceramic composite structure and a fabrication method thereof. The metal-ceramic composite structure includes a ceramic substrate having a groove on a surface thereof; a metal member filled in the groove, including a main body made of zirconium base alloy, and a reinforcing material dispersed in the main body and selected from at least one of W, Mo, Ni, Cr, stainless steel, WC, TiC, SiC, ZrC, ZrO2, BN, Si3N4, TiN and Al2O3; a luminance value L of the metal member surface is in a range of 36.92-44.07 under a LAB Chroma system.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: March 9, 2021
    Assignee: BYD COMPANY LIMITED
    Inventors: Qing Gong, Xinping Lin, Yongzhao Lin, Faliang Zhang, Bo Wu
  • Patent number: 10888928
    Abstract: A method of sinter fitting a powder metal compact around a core forms a composite component. By exploiting the shrinkage associated with the sintering of a powder metal compact, a sintered powder metal section may be dimensionally shrunk onto a core to create a mechanical interference fit between a core section and a sintered powder metal section. This method may be used to join materials such as aluminum and steel together, which traditionally have been difficult to join to one another.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: January 12, 2021
    Assignee: GKN Sinter Metals, LLC
    Inventor: Alan C. Taylor
  • Patent number: 10815748
    Abstract: A unitary body includes magnesium and aluminum and at least one of iron, tungsten, nickel, or titanium and has a dissolution rate of at least 5 mg/(cm2·hr). The magnesium and aluminum and/or the iron, tungsten, nickel, and/or titanium can be present in discrete solid regions. The unitary body can include multiple sections having different compositions and different dissolution rates. The unitary body can be formed using solid-state powder metallurgy processes.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 27, 2020
    Inventors: Jonathan Meeks, Henry S. Meeks
  • Patent number: 10618109
    Abstract: A process includes agitating at least one core of a core alloy together with a braze binder to form at least one coated core comprising the at least one core coated with a first layer of the braze binder. The process also includes agitating the at least one coated core together with a powder composition comprising a first metal powder of a first alloy and a second metal powder of a second alloy to form a green preform having a first powder composition layer of the first alloy and the second alloy. The process further includes sintering the green preform to form at least one hybrid pre-sintered preform. A green preform includes a core, a first layer of a braze binder coated on the core, and a powder composition coated on the first layer. A hybrid pre-sintered preform includes a core and a first layer sintered to the core.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: April 14, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yan Cui, Srikanth Chandrudu Kottilingam, Brian Lee Tollison, Brian Leslie Henderson
  • Patent number: 10597761
    Abstract: Disclosed herein is a composite comprising a metal alloy matrix; where the metal alloy matrix comprises aluminum in an amount greater than 50 atomic percent; a first metal and a second metal; where the first metal is different from the second metal; and where the metal alloy matrix comprises a low temperature melting phase and a high temperature melting phase; where the low temperature melting phase melts at a temperature that is lower than the high temperature melting phase; and a contracting constituent; where the contracting constituent exerts a compressive force on the metal alloy matrix at a temperature between a melting point of the low temperature melting phase and a melting point of the high temperature melting phase or below the melting points of the high and low temperature melting phases.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: March 24, 2020
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Michele Viola Manuel, Charles Robert Fisher, Maria Clara Wright
  • Patent number: 10576586
    Abstract: The invention relates to a method for producing a sintered part having a highly precise molded part height, the sintered part being produced from a first sintered joining part that has a first joining surface and a second sintered joining part that has at least a second joining surface. The method comprises at least the following steps: joining the first sintered joining part and the second sintered joining part, the first joining surface being oriented such that it faces the second joining surface; pressing the first sintered joining part and the second sintered joining part against each other under axial compression pressure exerted by a pressing tool, the highly precise molded part height being brought about by pressing the parts against each other; removing the sintered part from the pressing tool as a sintered part having a highly precise molded part height. The invention also relates to a parts set of sintered joining parts.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 3, 2020
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Sascha Frey, Alexander Tausend, Kerstin Ziegler
  • Patent number: 10197178
    Abstract: A vibration-resistant, flexible metallic seal for use in an electrohydraulic servo valve (EHSV), the EHSV comprising an armature, an armature support comprising a base, and a flapper, the seal surrounding a portion of the flapper, the seal having a first end, a second end, a thickness along a length of the seal between the first end and the second end, the thickness being defined between first and second outer surfaces of the seal, and one or a plurality of convolutions between the first end and the second end, the first end disposed between and hermetically connected to the flapper and the armature, the second end disposed within the first opening and hermetically connected to the base, wherein the seal comprises: a non-porous metal that comprises a first fraction of the thickness; a porous metal comprising a plurality of pores that comprises a second fraction of the thickness; and an elastomeric material encompassed by the pores of the second fraction of the thickness, wherein the second fraction comprises
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 5, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard Rateick, Donna Laboda
  • Patent number: 10190227
    Abstract: An article comprising an electrodeposited aluminum alloy is described herein. The electrodeposited aluminum alloy comprises an average grain size less than approximately 1 micrometer. The electrodeposited aluminum alloy thickness is greater than approximately 40 micrometers. A ductility of the electrodeposited aluminum alloy is greater than approximately 2%.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 29, 2019
    Assignee: Xtalic Corporation
    Inventors: Shiyun Ruan, Witold Paw, John Hunter Martin, Alan C. Lund
  • Patent number: 10174438
    Abstract: An apparatus for processing material at elevated pressure, the apparatus comprising: (a) two or more radial restraint structures defining an interior region configured to receive a processing chamber, the radial restraint structures being configured to resist an outward radial force from the interior region; (b) upper and lower crown members being disposed axially on either end of the interior region and configured to resist an outward axial force from the interior region; (c) a first axial restraint structure coupling the upper crown member and the lower crown member to provide axial restraint of the upper crown member and the lower crown; and (d) a second axial restraint structure compressing the two or more radial restraint structures to provide an axial restraint of the two or more radial restraint structures.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 8, 2019
    Assignee: SLT TECHNOLOGIES, INC.
    Inventors: Rajeev Tirumala Pakalapati, Mark P. D'Evelyn
  • Patent number: 9982356
    Abstract: Methods, structures, devices and systems are disclosed for fabrication of microtube engines using membrane template electrodeposition. Such nanomotors operate based on bubble-induced propulsion in biological fluids and salt-rich environments. In one aspect, fabricating microengines includes depositing a polymer layer on a membrane template, depositing a conductive metal layer on the polymer layer, and dissolving the membrane template to release the multilayer microtubes.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 29, 2018
    Assignee: The Regents of the University of California
    Inventors: Joseph Wang, Wei Gao, Sirilak Sattayasamitsathit
  • Patent number: 9972597
    Abstract: A method for bonding with a silver paste includes coating a semiconductor device or a substrate with the silver paste. The silver paste contains a plurality of silver particles and a plurality of bismuth particles. The method further includes disposing the semiconductor on the substrate and forming a bonding layer by heating the silver paste, wherein the semiconductor and the substrate are bonded to each other by the bonding layer.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: May 15, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Kyoung-Kook Hong, Hyun Woo Noh, Youngkyun Jung, Dae Hwan Chun, Jong Seok Lee, Su Bin Kang
  • Patent number: 9931814
    Abstract: An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of providing a metal alloy powder; forming an initial layer with the metal alloy powder, the initial layer having a preselected thickness and a preselected shape, the preselected shape including at least one aperture; sequentially forming an additional layer over the initial layer with the metal alloy powder, the additional layer having a second preselected thickness and a second preselected shape, the second preselected shape including at least one aperture corresponding to the at least one aperture in the initial layer; and joining the additional layer to the initial layer, forming a structure having a predetermined thickness, a predetermined shape, and at least one aperture having a predetermined profile. The structure is attached to a substrate to make the article.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 3, 2018
    Assignee: General Electric Company
    Inventors: Benjamin Paul Lacy, David Edward Schick, Srikanth Chandrudu Kottilingam
  • Patent number: 9931695
    Abstract: An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of depositing a metal alloy powder to form an initial layer including at least one aperture, melting the metal alloy powder with a focused energy source to transform the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder to form a layer including at least one aperture corresponding to the at least one aperture in the initial layer, melting the additional layer of the metal alloy powder with the focused energy source to increase the sheet thickness, and repeating the steps of sequentially depositing and melting the additional layers of metal alloy powder until a structure including at least one aperture having a predetermined profile is obtained. The structure is attached to a substrate to make the article.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 3, 2018
    Assignee: General Electric Company
    Inventors: Benjamin Paul Lacy, David Edward Schick, Srikanth Chandrudu Kottilingam
  • Patent number: 9689556
    Abstract: The present invention relates inter alia to an array comprising i times j array elements, wherein the array elements may comprise at least one quantum dot and/or at least one photoluminescent compound. Further the present invention relates to devices comprising these arrays. The arrays and devices can be used to generate white light with high color purity.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: June 27, 2017
    Assignee: Merck Patent GmbH
    Inventors: Junyou Pan, Niels Schulte, Thomas Eberle
  • Patent number: 9643252
    Abstract: A population of nanowires can be prepared by a method involving electric field catalyzed growth and alteration based on surface charge density.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 9, 2017
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: August Dorn, Cliff R. Wong, Moungi G. Bawendi
  • Patent number: 9598774
    Abstract: Briefly, in one embodiment, a method is disclosed. The method includes introducing a powder feedstock into a cold-spray apparatus, and operating the cold-spray apparatus to deposit the feedstock. The feedstock includes particles including nickel-base alloy having a thermally altered microstructure.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 21, 2017
    Assignee: General Electric Corporation
    Inventors: Leonardo Ajdelsztajn, Timothy Hanlon
  • Patent number: 9525092
    Abstract: A solar concentrator module (80) employs a luminescent concentrator material (82) between photovoltaic cells (86) having their charge-carrier separation junctions (90) parallel to front surfaces (88) of photovoltaic material 84 of the photovoltaic cells (86). Intercell areas (78) covered by the luminescent concentrator material (82) occupy from 2 to 50% of the total surface area of the solar concentrator modules (80). The luminescent concentrator material (82) preferably employs quantum dot heterostructures, and the photovoltaic cells (86) preferably employ low-cost high-efficiency photovoltaic materials (84), such as silicon-based photovoltaic materials.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 20, 2016
    Assignee: Pacific Light Technologies Corp.
    Inventors: Alex C. Mayer, Shawn R. Scully, Juanita N. Kurtin, Alex R. Guichard, Steven M. Hughes, Oun Ho Park, Paul-Emile B. Trudeau, Colin C. Reese, Manav Sheoran, Georgeta Masson
  • Patent number: 9478332
    Abstract: A method for producing a sintered R-T-B based magnet includes providing a sintered R-T-B based magnet body, of which the rare-earth-element mole fraction falls within the range of 31 mass % to 37 mass %; providing an RH diffusion source including a heavy rare-earth element RH (which is at least one of Dy and Tb) and 30 mass % to 80 mass % of Fe; loading the sintered magnet body and the RH diffusion source into a processing chamber so that the magnet body and the diffusion source are movable relative to each other and readily brought close to, or in contact with, each other; and performing an RH diffusion process by conducting a heat treatment on the sintered magnet body and the RH diffusion source at a process temperature of 700° C. to 1000° C. while moving the sintered magnet body and the RH diffusion source either continuously or discontinuously.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: October 25, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Futoshi Kuniyoshi, Rintaro Ishii, Ryouichi Yamagata
  • Patent number: 9412505
    Abstract: A NdFeB system sintered magnet produced by the grain boundary diffusion method and has a high coercive force and squareness ratio with only a small decrease in the maximum energy product. A NdFeB system sintered magnet having a base material produced by orienting powder of a NdFeB system alloy and sintering the powder, with Dy and/or Tb (the “Dy and/or Tb” is hereinafter called RH) attached to and diffused from a surface of the base material through the grain boundary inside the base material by a grain boundary diffusion treatment, wherein the difference Cgx-Cx between the RH content Cgx (wt %) in the grain boundary and the RH content Cx (wt %) in main-phase grains which are grains constituting the base material at the same depth within a range from the surface to which RH is attached to a depth of 3 mm is equal to or larger than 3 wt %.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 9, 2016
    Assignee: INTERMETALLICS CO., LTD.
    Inventors: Masato Sagawa, Tetsuhiko Mizoguchi
  • Patent number: 9396851
    Abstract: A NdFeB system sintered magnet according to the present invention is a NdFeB system sintered magnet having a base material produced by orienting powder of a NdFeB system alloy and sintering the powder, with Dy and/or Tb (the “Dy and/or Tb” is hereinafter called RH) attached to and diffused from a surface of the base material through the grain boundary inside the base material by a grain boundary diffusion treatment, wherein the number of grain-boundary triple points at which the difference Ct?Cw between the RH content Ct (wt %) at the grain-boundary triple point and the RH content Cw (wt %) at a two-grain boundary portion leading to that grain-boundary triple point is equal to or smaller than 4 wt % is equal to or larger than 60% of the total number of grain-boundary triple points.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 19, 2016
    Assignee: INTERMETALLICS CO., LTD.
    Inventors: Masato Sagawa, Tetsuhiko Mizoguchi
  • Patent number: 9362035
    Abstract: A NdFeB system sintered magnet according to the present invention is a NdFeB system sintered magnet having a base material produced by orienting powder of a NdFeB system alloy and sintering the powder, with Dy and/or Tb (the “Dy and/or Tb” is hereinafter called RH) attached to and diffused from a surface of the base material through the grain boundary inside the base material by a grain boundary diffusion treatment, wherein the number of grain-boundary triple points at which the difference Ct?Cw between the RH content Ct (wt %) at the grain-boundary triple point and the RH content Cw (wt %) at a two-grain boundary portion leading to that grain-boundary triple point is equal to or smaller than 4 wt % is equal to or larger than 60% of the total number of grain-boundary triple points.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: June 7, 2016
    Assignee: INTERMETALLICS CO., LTD.
    Inventors: Masato Sagawa, Tetsuhiko Mizoguchi
  • Patent number: 9242296
    Abstract: A method for producing a rare earth magnet material which allows efficient Dy or the like diffusion into an inside thereof. This method includes a preparation step of preparing a powder mixture of magnet powder including one or more rare earth elements including neodymium, boron, and the remainder being iron; and neodymium fluoride powder; a heating step of heating a compact of the powder mixture and causing oxygen around magnet powder particles to react with the fluoride powder, thereby obtaining a lump rare earth magnet material in which neodymium oxyfluoride is wholly distributed. The fluoride powder traps oxygen enclosed in the powder mixture and fixes the oxygen as stable NdOF. When Dy is diffused into this rare earth magnet material, Dy smoothly enters into its inside without being oxidized at grain boundaries. Consequently, coercivity of the entire rare earth magnet material can be efficiently increased without wasting scarce Dy.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 26, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yuji Kaneko, Yukio Takada
  • Patent number: 9186726
    Abstract: There is disclosed a method of making a metallic or ceramic component, such as a cutting or forming tool, from at least two distinct powder precursors. In one embodiment, the method comprising forming a first mixture comprised of a plurality of coated particles, such as Tough-Coated Hard Powder (TCHP) composite particles created by encapsulating extremely hard core particles with very tough binder and structural materials, and at least one support powder, such as a carbide, typically WC—Co. The mixture is formed into a green body and sintered to form a functionally graded or multicomponent article. Non-limiting examples of the articles made from the disclosed methods are also disclosed and include drills, mills, cutting tools, forming tools, wires dies and mechanical components.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 17, 2015
    Assignee: Allomet Corporation
    Inventors: John M. Keane, Richard E. Toth
  • Patent number: 9070487
    Abstract: A conductive member disposed as a power supply line and the like includes: a first conductive material and a second conductive material, at least one of which includes a conductive material having electrical resistance lower than that of aluminum; and a metal film formed by depositing powder including a metal, which is accelerated together with a gas and sprayed, in a sold state, onto a surface of a butting part, where the first conductive material and the second conductive material are butted against each other.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: June 30, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takashi Kayamoto, Shinji Saito, Yuichiro Yamauchi
  • Publication number: 20150118511
    Abstract: A first die is sequentially filled with a first-layer mixed powder that is a mixture of a basic metal powder having a small particle size and a low-melting-point lubricant powder, a second-layer mixed powder that is a mixture of the basic metal powder having a large particle size and the low-melting-point lubricant powder, and a third-layer mixed powder that is a mixture of the basic metal powder having a small particle size and the low-melting-point lubricant powder. A first pressure is applied to each mixed powder to form an intermediate green compact. The intermediate green compact is heated, and placed in a second die. A second pressure is applied to the intermediate green compact to form a high-density three-layer green compact.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 30, 2015
    Inventors: Kazuhiro Hasegawa, Yoshiki Hirai
  • Publication number: 20150104665
    Abstract: A method of manufacturing an article (such as a dental restoration) comprising taking an article, comprising at least one product (such as a dental restoration), in an initial state, formed from a powdered material, layer-by-layer and electrochemically processing at least a select region of the at least one product (such as a dental restoration) so as to smoothen at least said select region.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 16, 2015
    Inventor: David Beeby
  • Patent number: 8999514
    Abstract: Provided is bond coating powder and method of making. The method includes providing a powder including a plurality of parent particles. The method includes providing a plurality of dispersoids. The method includes mechanically alloying the powder and the plurality of dispersoids at ambient temperature. The mechanical alloying operable to provide a selective occupation of the plurality of dispersoids in a grain boundary area of the plurality of parent particles providing the bond coating powder. The plurality of dispersoids occupy about 18 percent to about 30 percent of the grain boundary area of the bond coating powder.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 7, 2015
    Assignee: General Electric Company
    Inventors: Arunkumar Shamrao Watwe, Yuk-Chiu Lau
  • Publication number: 20150079414
    Abstract: Disclosed herein is a method for preparing a multilayer metal complex having excellent surface properties. Specifically, the present invention relates to a method for preparing a multilayer metal complex having a low cost metal-core/noble metal-shell structure, which has a high mass fraction of noble metals and exhibits excellent surface properties and dispersity.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Ki-Hoon KIM, Sung-Koo KANG, Min-Kyung OH, Hyung-Rak KIM
  • Patent number: 8980420
    Abstract: Proposed are a composite material, wherein non-penetrating pores that are formed in a silicon surface layer are filled up with a metal or the like without leaving any voids by using the plating technique, and a method of producing the composite material. A composite material, which has been packed at a high accuracy, or in other words, in which little voids are left, can be obtained by filling up non-penetrating pores that are formed from a silicon surface (100) substantially with a second metal or an alloy of the second metal (106) with the use of the autocatalytic electroless plating technique wherein a first metal located at the bottom of the non-penetrating pores as described above serves as the starting point.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: March 17, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Shinji Yae, Tatsuya Hirano, Hitoshi Matsuda
  • Publication number: 20150056463
    Abstract: A method for manufacturing a cemented carbide body includes the steps of forming a first part of a first powder composition comprising a first carbide and a first binder phase, sintering the first part to full density in a first sintering operation, forming a second part of a second powder composition comprising a second carbide and a second binder phase, sintering the second part to full density in a second sintering operation, bringing a first surface of the first part and a second surface of the second part in contact, and joining the first and second surface in a heat treatment operation.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 26, 2015
    Inventors: Bo Jansson, Per Jonsson, Tomas Persson
  • Publication number: 20150037599
    Abstract: An additive layer manufacture (ALM) machine generates a first electron beam for selectively melting a layer of metal powder, and a second electron beam for detecting defects in the selectively melted layer once it has solidified. The second electron beam has a lower power than the first electron beam so as to be used to identify any defects without performing further melting. If any defects are detected, they can be removed, for example by re-melting, before the next layer of powder is supplied. The process may be repeated to generate a finished component with good mechanical properties.
    Type: Application
    Filed: July 22, 2014
    Publication date: February 5, 2015
    Inventor: Michael Lewis BLACKMORE
  • Patent number: 8947516
    Abstract: A method of imaging microscopic objects includes determining the relative depths of two or more semiconductor nanocrystals by analyzing images of the semiconductor nanocrystals at varying z-displacements.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: February 3, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Hao Huang, Yu Yao, C. Forbes Dewey, Moungi G. Bawendi
  • Patent number: 8926896
    Abstract: One embodiment includes providing a first layer including a first powder material and a second layer including a second powder material over the first layer, and compacting the first powder material and the second powder material using at least a first magnetic field.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Shekhar G. Wakade, Mark A. Osborne, William L. Miller
  • Publication number: 20140370323
    Abstract: A method for increasing the resolution when forming a three-dimensional article through successive fusion of parts of a powder bed, said method comprising providing a vacuum chamber, providing an electron gun, providing a first powder layer on a work table inside said vacuum chamber, directing an electron beam from said electron gun over said work table causing the powder layer to fuse in selected locations to form a first cross section of said three-dimensional article, providing a second powder layer on said work table, directing the electron beam over said work table causing said second powder layer to fuse in selected locations to form a second cross section of said three-dimensional article, reducing the pressure in the vacuum chamber from a first pressure level to a second pressure level between the providing of said first powder layer and said second powder layer.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 18, 2014
    Applicant: ARCAM AB
    Inventor: Ulf Ackelid
  • Publication number: 20140336680
    Abstract: Compositions and methods for making a three dimensional structure comprising: designing a three-dimensional structure; melting the three-dimensional structure from two or more layers of a metal powder with a high energy electron or laser beam is described herein. The position where the metal is melted into the structure is formed along a layer of metal powder, wherein the location and intensity of the beam that strikes the metal layer is based on the three-dimensional structure and is controlled and directed by a processor. The instant invention comprises a novel dry state sonication step for removing metal powder that is not melted from the three dimensional structure.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Inventors: Frank Medina, Lawrence Murr, Ryan Wicker, Sara Gaytan