Cobalt Base Patents (Class 148/425)
  • Patent number: 11193182
    Abstract: A method for heat-treating a metal strip, where the metal strip is pre-heated continuously in a pre-heating zone with the aid of hot gas and subsequently undergoes further heat treatment in a directly fired furnace in a reducing and/or oxidizing atmosphere. The metal strip is pre-heated in the pre-heating zone with hot inert gas and further heated with an electric heating system before entering the directly fired furnace. A furnace plant for implementing the process and a related heat recovery system are also disclosed.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 7, 2021
    Assignee: Andritz Technology and Asset Management GmbH
    Inventors: Pierre-Jerome Borrel, Eric Blake
  • Patent number: 10760686
    Abstract: Aspects are directed to a tribological and creep resistant system configured to operate at temperature in excess of 750° C., comprising: a piston seal that includes a nickel base alloy, where the nickel base alloy includes a Ni3(Al,X) type precipitated phase in an amount greater than 40% by volume. Aspects are directed to a system comprising: a piston seal that includes a cobalt-based alloy. Aspects are directed to a method comprising: heat treating an ingot of a nickel base alloy that includes coarsening a precipitated phase to facilitate forging or wrought forming the ingot, machining the ingot to include a substantially flat surface, and processing the ingot to generate a piston seal.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: September 1, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Dilip M. Shah, Pantcho Stoyanov, Chris Vargas
  • Patent number: 10583223
    Abstract: The present invention relates to orthopedic implants, in particular to hip and knee prostheses, substantially involving metallic substrates with an antibacterial surface treatment consisting of silver immobilized in an organic linker and ligand via a multistep solution dipping and drying process. This treatment while being biocompatible is designed to inhibit bacterial growth and therefore combat periprosthetic infection which is one of the main causes of revision in hip and knee arthroplasty.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 10, 2020
    Assignee: MEDACTA INTERNATIONAL SA
    Inventors: Katharina M. Fromm, Priscilla S. Brunetto
  • Patent number: 10570492
    Abstract: Provided is a titanium cast product for hot rolling made of commercial pure titanium or a titanium alloy, the titanium cast product including, in a surface serving as a rolling surface, a fine structure layer that is formed of an acicular structure formed in the outermost surface by melting and re-solidification treatment and that has a thickness of more than or equal to 5 mm and less than 9 mm in depth. In the titanium cast product for hot rolling according to the present invention, the surface is flat, the number of minute voids in the interior immediately below the surface is small, and the outermost surface has a significantly fine structure. When the titanium cast product is subjected to hot rolling, the occurrence of concavities on the surface in the early stage of hot rolling and the occurrence of surface defects on the hot rolled sheet can be stably prevented at a practical level.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 25, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tomonori Kunieda, Yoshitsugu Tatsuzawa, Kenichi Mori, Hideki Fujii
  • Patent number: 10391557
    Abstract: In one aspect, composite articles are described herein employing cobalt-based alloy claddings exhibiting high hardness and wear resistance while maintaining desirable integrity and adhesion to surfaces of metallic substrates. A composite article, in some embodiments, comprises a metallic substrate and a composite cladding metallurgically bonded to one or more surfaces of the metallic substrate, the composite cladding including cobalt-based alloy having a chromium gradient, wherein chromium content increases in a direction from the composite cladding surface to an interface of the composite cladding with the metallic substrate.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: August 27, 2019
    Assignee: KENNAMETAL INC.
    Inventors: James A. Faust, Daniel Bourlotos, Qingjun Zheng, Michael Meyer
  • Patent number: 10266958
    Abstract: A coated article (22) comprises a substrate (100) and a coating system (102) atop the substrate. The coating system has a nickel-based first layer (104) and a chromium-based second layer (108) atop the first layer.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: April 23, 2019
    Assignee: United Technologies Corporation
    Inventor: Michael N. Task
  • Patent number: 10130449
    Abstract: A dental casting billet material includes: Co as a main component; Cr in a proportion of 26% by mass or more and 35% by mass or less; Mo in a proportion of 5% by mass or more and 12% by mass or less; and Si in a proportion of 0.3% by mass or more and 2.0% by mass or less, wherein the billet material is formed from a sintered body of a metal powder, and the billet material has a relative density of 92% or more and 99.5% or less.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: November 20, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hidefumi Nakamura, Teruo Anraku
  • Patent number: 9803263
    Abstract: A method for manufacturing a wear resistant component, includes the steps of: providing a mould defining at least a portion of the component; providing a powder mixture comprising a first powder of tungsten carbide and a second powder of a cobalt-based alloy, wherein the powder mixture comprises 30-70 vol % of the first powder of tungsten carbide and 70-30 vol % of the second powder of the cobalt-based alloy and the second powder of cobalt-based alloy comprises 20-35 wt % Cr, 0-20 wt % W, 0-15 wt % Mo, 0-10 wt % Fe, 0.05-4 wt % C and balance Co, wherein the amounts of W and Mo fulfills the requirement 4<W+Mo<20; filling the mould with the powder mixture; and subjecting the mould to Hot Isostatic Pressing (HIP) at a predetermined temperature, a predetermined isostatic pressure and for a predetermined time so that the particles of the powder mixture bond metallurgically to each other.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: October 31, 2017
    Assignee: Sandvik Intellectual Property AB
    Inventor: Tomas Berglund
  • Patent number: 9757224
    Abstract: An embodiment of the invention relates to a cobalt-based alloy, which due to the composition exhibits twinning as the dominating deformation mechanism: Cr: 13.0 to 30.0% by weight Mn: 2.0 to 10.0% by weight W: 2.0 to 18.0% by weight Fe: 5.0 to 15.0% by weight C: 0.002 to 0.5% by weight N: 0 to 0.2% by weight Si: 0 to 2.0% by weight Ni: 0 to 5.0% by weight wherein the aforementioned alloying components and manufacturing-related impurities add up to 100% by weight, and the following restrictions according to formulas (1) and (2) apply to the contents of nitrogen and carbon, and the following restrictions according to formula (3) apply to the contents of oxygen, phosphorus and sulfur: 0.003%?C+N?0.5% weight??(1) N/C(wt. %)?1.00 for 0.07%<C<0.15% (weight)??(2) O+P+S<0.10% weight??(3).
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 12, 2017
    Assignee: BIOTRONIK AG
    Inventor: Bodo Gerold
  • Patent number: 9468995
    Abstract: A method for joint-welding coated metal sheets in a butt joint. At least one pulverulent welding additive in the form of a gas-powder flow is added to the weld melt via at least one flow duct, such that the gas-powder flow leaving the flow duct is directed towards the weld melt at a speed of at least 2 m/s, such that the welding additive mixes turbulently with the weld melt and flow eddies form in the weld melt. A device including at least one welding head for producing and/or focussing an energy beam and at least one flow duct for supplying gas-powder flow, the flow duct having a longitudinal axis, the longitudinal axis and the beam axis of the energy beam being at an angle between 15 and 75 degrees. The flow duct is adapted to set the gas powder flow to a speed of at least 2 m/s.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: October 18, 2016
    Assignee: WISCO Tailored Blanks GmbH
    Inventors: Max Brandt, Arndt Breuer, Robert Vollmer, Ralf Kolleck
  • Patent number: 9427500
    Abstract: A stent made entirely or partially of a cobalt alloy having the following composition: Co: 18.36-66.85% by weight Cr: 17.0-30.0% by weight Mn: 4.0-10.0% by weight W: 9.0-18.0% by weight Fe: 3.0-20.0% by weight C: 0.03-0.5% by weight N: 0.1-1.0% by weight Si: 0-2.0% by weight O: 0-0.05% by weight with the alloying components and production-related impurities adding up to 100% by weight and (i) a PRE value for corrosion resistance, which is derived from the weight percentages of the alloying components according to formula (1) PRE=[Cr]+1.65×[W]+30×[N]??(1) ranges between 34 and 89; and (ii) for the contents of nitrogen and carbon the following restrictions according to formula (2) and (3) apply 0.15?C+N?1.00??(2) 0.25?C+N?1.00??(3).
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: August 30, 2016
    Assignee: BIOTRONIK AG
    Inventor: Bodo Gerold
  • Patent number: 9365913
    Abstract: The present invention relates to a high-hardness hardfacing alloy powder, containing: 0.5<C?3.0 mass %, 0.5?Si?5.0 mass %, 10.0?Cr?30.0 mass %, and 16.0<Mo?40.0 mass %, with the balance being Co and unavoidable impurities, wherein a total amount of Mo and Cr satisfies 40.0?Mo+Cr?70.0 mass %. The high-hardness hardfacing alloy powder according to the present invention may further contain at least one element selected from the group consisting of: Ca?0.03 mass %, P?0.03 mass %, Ni?5.0 mass % and Fe?5.0 mass %. The high-hardness hardfacing alloy powder according to the present invention can be employed for build-up welding of a face part of a valve used in various internal combustion engines, automotive engines, steam turbines, heat exchangers, heating furnaces and the like.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: June 14, 2016
    Assignee: DAIDO STEEL CO., LTD.
    Inventors: Kaoru Imaizumi, Shigeki Ueta
  • Patent number: 9336937
    Abstract: To realize a spintronics device with high performance, it is an object of the present invention to provide a Co2Fe-based Heusler alloy having a spin polarization larger than 0.65, and a high performance spintronics devices using the same. A Co2Fe(GaxGe1-x) Heusler alloy shows a spin polarization higher than 0.65 by a PCAR method in a region of 0.25<x<0.60 and it has a Curie temperature as high as 1288K. A CPP-GMR device that uses the Co2Fe(GaxGe1-x) Heusler alloy as an electrode exhibits the world's highest MR ratio, an STO device exhibits high output, and an NLSV device exhibits a high spin signal.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 10, 2016
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yukiko Takahashi, Srinivasan Ananthakrishnan, Varaprasad Bollapragada, Rajanikanth Ammanabrolu, Jaivardhan Sinha, Masamitsu Hayashi, Takao Furubayashi, Shinya Kasai, Shigeyuki Hirayama, Seiji Mitani, Kazuhiro Hono
  • Patent number: 9269389
    Abstract: A magnetic sputtering target which contains B and is obtained by a melting and casting method, wherein the B content is 10 at % or more and 50 at % or less, and the remainder is one or more elements selected from Co, Fe, and Ni. Based on the method of the present invention, the sputtering target, in which gaseous impurities are few, there are no cracks and fractures, and segregation of its main constituent elements is minimal, is obtained. Consequently, when sputtered with a magnetron sputtering device comprising a DC power supply, this sputtering target yields a significant effect of being able to inhibit the generation of particles during sputtering, and improve the production yield upon forming thin films.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: February 23, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Atsutoshi Arakawa
  • Patent number: 8840735
    Abstract: Fatigue damage resistant metal or metal alloy wires have a submicron-scale or nanograin microstructure that demonstrates improved fatigue damage resistance properties, and methods for manufacturing such wires. The present method may be used to form a wire having a nanograin microstructure characterized by a mean grain size that is 500 nm or less, in which the wire demonstrates improved fatigue damage resistance. Wire manufactured in accordance with the present process may show improvement in one or more other material properties, such as ultimate strength, unloading plateau strength, permanent set, ductility, and recoverable strain, for example. Wire manufactured in accordance with the present process is suitable for use in a medical device, or other high end application.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 23, 2014
    Assignee: Fort Wayne Metals Research Products Corp
    Inventor: Jeremy E. Schaffer
  • Patent number: 8764919
    Abstract: A cobalt-base superalloy chemical composition is disclosed which includes, in % by weight: 25-28 W; 3-8 Al; 0.5-6 Ta; 0-3 Mo; 0.01-0.2 C; 0.01-0.1 Hf; 0.001 -0.05 B; 0.01-0.1 Si; and remainder Co and unavoidable impurities. This superalloy can be strengthened by ?? dispersions and further dispersion mechanisms. Exemplary compositions can provide good oxidation properties and improved strength values at high temperatures.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: July 1, 2014
    Assignee: Alstom Technology Ltd
    Inventors: Mohamed Nazmy, Andreas Künzler, Markus Staubli
  • Patent number: 8679268
    Abstract: A ferromagnetic sputtering target comprising metal having a composition containing 20 mol % or less of Cr, and Co as the remainder; wherein the target structure includes a basis metal (A), and flat phases (B), containing 90 wt % or more of Co, within the basis metal (A), the average grain size of the phases (B) is 10 ?m or more and 150 ?m or less, and the average aspect ratio of the phases (B) is 1:2 to 1:10. Provided is a ferromagnetic sputtering target capable of inhibiting the generation of particles during sputtering, and improving the pass-through flux to achieve a stable electrical discharge with a magnetron sputtering device.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 25, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Shin-ichi Ogino, Atsushi Sato, Yuichiro Nakamura, Atsutoshi Arakawa
  • Publication number: 20140060707
    Abstract: Alloys, processes for preparing the alloys, and manufactured articles including the alloys are described. The alloys include, by weight, about 10% to about 20% chromium, about 4% to about 7% titanium, about 1% to about 3% vanadium, 0% to about 10% iron, less than about 3% nickel, 0% to about 10% tungsten, less than about 1% molybdenum, and the balance of weight percent including cobalt and incidental elements and impurities.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: QuesTek Innovations LLC
    Inventors: James A. Wright, Jeremy Hoishun Li
  • Patent number: 8663402
    Abstract: A sputtering target and surface processing method is provided. Intermetallic compounds, oxides, carbides, carbonitrides and other substances without ductility exist in the target surface in a highly ductile matrix phase at a volume ratio of 1 to 50%. The target surface is preliminarily subjected to primary processing of cutting work, and then subsequently subjected to finish processing via polishing. The sputtering target subject to this surface processing has an improved target surface with numerous substances without ductility and prevents or suppresses the generation of nodules and particles upon sputtering.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 4, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Nakamura, Akira Hisano
  • Publication number: 20130259735
    Abstract: This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
    Type: Application
    Filed: May 2, 2013
    Publication date: October 3, 2013
    Inventors: Akihiko Chiba, Shingo Kurosu, Naoyuki Nomura
  • Patent number: 8529710
    Abstract: A Co-based alloy being useful as a spiral spring, common spring, wire, cable guide, steel belt, build-up material, guide wire, stent, catheter, etc. There is provided a Co-based alloy having a composition of Co—Al binary system containing 3-13% Al loaded with at least one workability enhancing element selected from among 001 to 50% Ni, 0.01 to 40% Fe and 0.01 to 30% Mn and having a lamellar structure wherein f.c.c. structure ?-phase and ?(B2)-phase are repeated in layers. The lamellar structure is so regulated that the occupancy ratio of the whole structure is 30 vol. % or above and the layer spacing is 100 ?m or less. The Co-based alloy may contain at least one optional component selected from among Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be added in a total amount of 0.01 to 60%.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: September 10, 2013
    Assignee: Japan Science and Technology Agency
    Inventors: Kiyohito Ishida, Kiyoshi Yamauchi, Ryosuke Kainuma, Yuji Sutou, Toshihiro Omori
  • Patent number: 8524017
    Abstract: A process for manufacturing a component with a base of Co—Cr—Mo alloys having values of average ultimate elongation at 800° C. greater than 10% and of average yielding load at 800° C. greater than 400 MPa, comprising: obtaining a sintered component by additive sintering of powders of Co—Cr—Mo alloys containing carbides irregularly dispersed in the molten matrix; Conducting a first heat treatment on the sintered component for solubilization of the carbides at a temperature of between 1100° C. and 1300° C. for at least 2 hours to form a solubilization intermediate; and cooling the solubilization intermediate at a cooling rate at least equal to that of cooling in air to form a cooled intermediate; and conducting a second heat treatment on the cooled intermediate at a temperature of between 700° C. and 1000° C.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: September 3, 2013
    Assignee: AVIO S.p.A.
    Inventor: Giovanni Paolo Zanon
  • Publication number: 20130195709
    Abstract: A metal base alloy and methods for producing the alloy. The metal base alloy product includes the formula Mebase Ta Sib Crc Mnj Ve Cf, wherein—Mebase is a metal base selected from the group having Fe, Co and Ni, in an amount ranging from about 45-75 w %. The metal base alloy product contains a substantially homogenous dispersion of separate precipitated carbide particles in an amount ranging from 10-65 percentages by volume and the precipitate carbide particles have an average diameter of 0.01-5 micrometers.
    Type: Application
    Filed: June 23, 2011
    Publication date: August 1, 2013
    Applicant: SUPERIOR METALS SWEDEN AB
    Inventors: Sathees Ranganathan, Sohrab Solaimanzadeh-Azar, Hasse Fredriksson, Advenit Makaya
  • Patent number: 8460485
    Abstract: A Co—Cr—Mo alloy with nitrogen addition composed of 26 to 35% by weight of Cr, 2 to 8% by weight of Mo, 0.1 to 0.3% by weight of N, and balance of Co is subjected to solution treatment and then subjected to isothermal aging treatment holding the alloy at 670 to 830° C. for a predetermined period of time to form a multi-phase structure composed of an ?-phase and a Cr nitride by means of an isothermal aging effect. After cooling, the alloy subjected to reverse transformation treatment in which the alloy is heated at a temperature range of 870 to 1100° C. for reverse transformation to a single ?-phase from the multi-phase structure composed of an ?-phase and a Cr nitride.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 11, 2013
    Assignee: Tohoku University
    Inventors: Shingo Kurosu, Akihiko Chiba, Hiroaki Matsumoto
  • Patent number: 8277575
    Abstract: The invention relates to inorganic intermetallic compounds having a PMR effect (combined GMR/CMR effect), which are characterized in that they contain at least two elements per formula unit and have a field sensitivity of less than 10% per 0.1 T at temperatures greater than 290 K. The invention also relates to composites consisting of these compounds, to a method for the production thereof and to their use, in particular, as magnetic field sensors or in the domain of spin electronics.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: October 2, 2012
    Assignee: International Business Machines Corporation
    Inventor: Claudia Felser
  • Patent number: 8075839
    Abstract: A wroughtable, cobalt alloy capable of through thickness nitridation and strengthening using practical treatments and practical sheet thicknesses contains in weight percent about 23 to about 30% chromium, about 15 to about 25% iron, up to about 27.3% nickel, about 0.75 to about 1.7% titanium, about 0.85 to about 1.9% niobium or zirconium, up to 0.2% carbon, up to 0.015% boron, up to 0.015% rare earth elements, up to 0.5% aluminum, up to 1% manganese, up to 1% silicon, up to 1% tungsten, up to 1% molybdenum, and the balance cobalt plus impurities and the total weight percent of titanium plus niobium or equivalents is from about 1.6 to about 3.6.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: December 13, 2011
    Assignee: Haynes International, Inc.
    Inventor: S. Krishna Srivastava
  • Patent number: 8021499
    Abstract: A Co-based alloy having a fundamental composition of Co—Al system containing 3-15% Al and having lamellar structure wherein f.c.c. structure ?-phase and ?(B2)-phase are superimposed on each other in layers, and the Co-based alloy is modified so as to have a porous surface layer region effective for chemical retaining capability, sustained release, biocompatibility, etc. through selective removal of either the ?-phase or the ?-phase from the surface layer. As a third component, at least one member selected from among Ni, Fe, Mn, Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be contained in a total amount of 0.001 to 60%.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: September 20, 2011
    Assignee: Japan Science and Technology Agency
    Inventors: Kiyohito Ishida, Kiyoshi Yamauchi, Ryosuke Kainuma, Yuji Sutou, Toshihiro Omori
  • Patent number: 7927434
    Abstract: Provided is a Co—Cr—Pt—B alloy sputtering target comprising an island-shaped rolled structure formed from a Co-rich phase based on the primary crystal formed upon casting, and a Co—Cr—Pt—B alloy sputtering target in which the island-shaped rolled structure has an average size of 200 ?m or less. This Co—Cr—Pt—B alloy sputtering target has an uniform and fine rolled structure with minimal segregation and residual stress upon casting, and the present invention aims to enable the stable and inexpensive manufacture of the target, prevent or suppress the generation of particles, and to improve the production yield of deposition.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: April 19, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Nakamura, Akira Hisano
  • Publication number: 20110073217
    Abstract: A wear resistant device includes a substrate of a first metallic material and a wear resistant layer disposed on a substrate. The wear resistant layer includes a matrix of a second, different metallic material, particulates dispersed throughout the matrix, and a boron material dispersed within a portion of the matrix.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Blair A. Smith, Aaron T. Nardi, Kevin M. Rankin, Patrick Louis Clavette
  • Patent number: 7909949
    Abstract: Provided is a surface processing method of a sputtering target, wherein a target surface in which intermetallic compounds, oxides, carbides, carbonitrides and other substances without ductility exist in a highly ductile matrix phase at a volume ratio of 1 to 50% is preliminarily subject to the primary processing of cutting work, then subsequently subject to finish processing via polishing. The sputtering target subject to this surface processing method is able to improve the target surface having numerous substances without ductility, and prevent or suppress the generation of nodules and particles upon sputtering.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: March 22, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Nakamura, Akira Hisano
  • Publication number: 20110041966
    Abstract: A Co-based alloy having a fundamental composition of Co—Al binary system containing 3-15% Al and having lamellar structure wherein f.c.c. structure ?-phase and ?(B2)-phase are superimposed on each other in layers, which Co-based alloy is modified so as to have a porous surface layer region effective for chemical retaining capability, sustained release, biocompatibility, etc. through selective removal of either the ?-phase or the ?-phase from the surface layer. As a third component, at least one member selected from among Ni, Fe, Mn, Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be contained in a total amount of 0.001 to 60%.
    Type: Application
    Filed: April 7, 2008
    Publication date: February 24, 2011
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kiyohito ISHIDA, Kiyoshi YAMAUCHI, Ryosuke KAINUMA, Yuji SUTOU, Toshihiro OMORI
  • Patent number: 7857916
    Abstract: A Co—Cr—Mo alloy fine wire has superior biocompatibility, corrosion resistance, wear resistance, processability, and flexibility. A manufacturing method and a planar body or the like formed by processing this fine wire. This is a fine wire of diameter of 200 micrometers or less comprising 26 to 31 weight % of Cr, 8 to 16 weight % of Mo, and the remainder of Co and inevitable impurities, in which the degree of roundness (minor diameter/major diameter) of lateral cross section is 0.6 or more, and the internal structure is uniform with the concentration ratio of high Mo concentration phase to low Mo concentration phase of 1.8 or less.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: December 28, 2010
    Assignee: NHK Spring Co., Ltd
    Inventors: Akihiko Chiba, Yoshiki Ono, Shigemi Sato, Michihiko Ayada, Takeshi Suzuki, Morimichi Kai, Masashi Sakamoto
  • Patent number: 7794652
    Abstract: A dental prosthesis may be cast and machined from a cobalt-, iron- and/or nickel-chromium base dental alloy comprising at least 25% metal selected from the group consisting of ruthenium, platinum, palladium, iridium, osmium, rhodium, and gold wherein the major portion or at least 15%, whichever is larger, of metal in this group is ruthenium; from 15 to 30% chromium; and a principal balance of metal selected from the group consisting of iron. nickel and cobalt.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: September 14, 2010
    Assignee: The Argen Corporation
    Inventor: Paul J. Cascone
  • Patent number: 7691215
    Abstract: The invention relates to inorganic intermetallic compounds having a PMR effect (combined GMR/CMR effect), which are characterized in that they contain at least two elements per formula unit and have a field sensitivity of less than 10% per 0.1 T at temperatures greater than 290 K. The invention also relates to composites consisting of these compounds, to a method for the production thereof an to their use, in particular, as magnetic field sensors or in the domain of spin electronics.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 6, 2010
    Assignee: International Business Machines Corporation
    Inventor: Claudia Felser
  • Patent number: 7622012
    Abstract: A flat soft magnetic metal powder is provided that includes: Ni in the range of 60 to 90 mass %, one or more kinds of Nb, V, and Ta in the range of 0.05 to 20 mass % in total (0.05 to 19.95 mass % when Mo is added thereto), Mo in the range of 0.05 to 10 mass % if necessary, one or two kinds of Al and Mn in the range of 0.01 to 1 mass % in total if necessary, and the balance including Fe; an average grain size of 30 to 150 ?m and an aspect ratio (average grain size/average thickness) of 5 to 500; and a flat face. Here, with a peak intensity of a face index (220) in an X-ray diffraction pattern I220 and a peak intensity of a face index (111) I111, a peak intensity ratio I220/I111 is in the range of 0.1 to 10.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: November 24, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventors: Gakuji Uozumi, Ryoji Nakayama, Yasushi Nayuki
  • Patent number: 7608172
    Abstract: The method manufactures high-purity ferromagnetic sputter targets by cryogenic working the sputter target blank at a temperature below at least ?50° C. to impart at least about 5 percent strain into the sputter target blank to increase PTF uniformity of the target blank. The sputter target blank is a nonferrous metal selected from the group consisting of cobalt and nickel; and the nonferrous metal has a purity of at least about 99.99 weight percent. Finally, fabricating the sputter target blank forms a sputter target having an improved PTF uniformity arising from the cryogenic working.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: October 27, 2009
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Andrew C. Perry, Holger J. Koenigsmann, David E. Dombrowski, Thomas J. Hunt
  • Patent number: 7601230
    Abstract: Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 13, 2009
    Assignee: Scimed Life Systems, Inc.
    Inventor: Charles Horace Craig
  • Patent number: 7588650
    Abstract: A high-temperature member for use in a gas turbine, the member being formed from a new wear-resistant alloy having good wear resistance as well as good ductility, is disclosed. The member was developed to prevent wear and damage that occur due to vibration while the turbine is running. The high-temperature member for use in a gas turbine is formed from a new cobalt-based wear-resistant alloy which is composed of a cobalt-chromium matrix and refractory metals, with the content of hard particles (such as carbide) reduced. The refractory metals promote work hardening, thereby improving wear resistance. The reduced content of hard particles contributes to good ductility.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 15, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Noboru Baba, Kazuya Nishi
  • Patent number: 7578893
    Abstract: A material for electrical contacts comprising a martensitic cobalt-nickel-iron alloy with a high strength, a high bendability and a high electrical conductivity, with a cobalt content of 12.0?Co?60.0% by weight, a nickel content of 10.0?Ni?36.0% by weight, remainder iron and an impurity content of less than 0.2 atomic percent, with a martensite temperature Ms of 75° C.?Ms?400° C. in the case of the martensitic variant and ?50° C.?Ms?25° C. in the case of the variant which is naturally hard as a result of cold-forming.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: August 25, 2009
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Hartwin Weber, Waldemar Döring, Matthias Schierling
  • Patent number: 7569116
    Abstract: A Co—Cr—Mo-based alloy includes: 63 mass %?Co<68 mass %; 15 mass %?Cr<26 mass %; 10 mass %?Mo<19 mass %; and the balance of inevitable impurities, wherein the total amount of Cr and Mo is from 32 mass % to 37%. The mass magnetic susceptibility of the alloy is 7×4?·10?9 m3/kg or less at room temperature, and the Vickers hardness number (Hv) of the alloy is 400 or more.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: August 4, 2009
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yoshiki Ono, Masashi Sakamoto
  • Patent number: 7465495
    Abstract: Disclosed is a composite black oxide particle which is composed of oxide of cobalt, copper and manganese. The copper/cobalt molar ratio is 0.1-0.5, and the manganese/cobalt molar ratio is 0.2-1.0. The composite black oxide particle further contains silicon, and the silicon content to the total oxide particle is 0.1-3 mass %. The surface of the composite black oxide particle is coated with aluminum oxide. The Al content in the surface coating to the entire particle is 0.05-3 mass %.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: December 16, 2008
    Assignee: Mitsu Mining & Smelting Co., Ltd.
    Inventors: Shoichi Fujiyasu, Tomio Hayashi, Koichi Katsuyama, Hiroyuki Shimamura
  • Publication number: 20080289730
    Abstract: A Co based alloy including at least one member selected from among 0.01 to 10% Fe, 0.01 to 30% Ni and 0.01 to 25% Mn, which Co based alloy has a metal structure wherein ?-phase of h.c.p. structure having been generated by heat-induced or stress-induced transformation is formed in a ratio of 10 vol. % or more. According to necessity, there may be added at least one member selected from among 0.01 to 10% Al, 0.01 to 35% Cr, to 20% V, 0.01 to 15% Ti, 0.01 to 30% Mo, 0.01 to 10% Nb, to 3% Zr, 001 to 30% W, 0.01 to 10% Ta, 0.01 to 5% Hf, 0.01 to 8% Si, 0.001 to 3% C, 0.001 to 3% B, 0.001 to 3% P and 0.001 to 3% misch metal. The Co based alloy exhibits high elastic deformation capability and is good in ductility and workability. The Co based alloy is used as a functional material of, for example, sensor or actuator capable of displacement control by magnetic field application.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 27, 2008
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kiyohito Ishida, Ryosuke Kainuma, Katsunari Oikawa, Yuji Sutou, Toshihiro Omori, Keisuke Ando
  • Publication number: 20080251163
    Abstract: This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 16, 2008
    Applicant: IWATE UNIVERSITY
    Inventors: Akihiko Chiba, Shingo Kurosu, Naoyuki Nomura
  • Patent number: 7435485
    Abstract: A magnetic material comprises 50-80 wt % of Cobalt, 9-15 wt% of Nickel, 10-25 wt% of Rhenium, 0.1 to 2.0 wt% of Phosphorus, and 5-10 wt % of Tungsten or Platinum. It can be formed as a layer having good vertical magnetic properties (e.g. when magnetised it can provide a high magnetic field strength in the direction perpendicular to the plane of the layer). The layer preferably has a thickness of above 1 ?m. It can be formed by electroplating. The layer is useful for inclusion in a MEMS device.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: October 14, 2008
    Assignee: Sony Corporation
    Inventors: Wei Beng Ng, Akio Takada
  • Publication number: 20080185075
    Abstract: A Co-based alloy being useful as a spiral spring, common spring, wire, cable guide, steel belt, build-up material, guide wire, stent, catheter, etc. There is provided a Co-based alloy having a composition of Co—Al binary system containing 3-13% Al loaded with at least one workability enhancing element selected from among 001 to 50% Ni, 0.01 to 40% Fe and 0.01 to 30% Mn and having a lamellar structure wherein f.c.c. structure ?-phase and ?(B2)-phase are repeated in layers. The lamellar structure is so regulated that the occupancy ratio of the whole structure is 30 vol. % or above and the layer spacing is 100 ?m or less. The Co-based alloy may contain at least one optional component selected from among Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be added in a total amount of 0.01 to 60%.
    Type: Application
    Filed: April 7, 2008
    Publication date: August 7, 2008
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kiyohito ISHIDA, Kiyoshi YAMAUCHI, Ryosuke KAINUMA, Yuji SUTOU, Toshihiro OMORI
  • Publication number: 20080163959
    Abstract: A manual device, for use in a stand, provides a threaded rod with two opposed cones coaxial upon the rod. The cones have wider bases located outwardly from the center of the rod and narrow tops located inwardly. Threaded holes centered in the tops of the cones admit the rod. In use, a wheel is placed upon the rod and the cones are turned towards the wheel, points toward the wheel. As the cones engage the wheel, the angled surface of each cone guides the wheel to be centered upon the rod. For open hubs, one cone is reversed so the base contacts the wheel while the top of the other enters the wheel hub and the base. When finger tight, the cones secure the wheel to the rod without marring for spinning and balancing on an axis coaxial with the rod.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 10, 2008
    Inventor: Steven C. Nemish
  • Publication number: 20080142126
    Abstract: A metallic structure having a graded microstructure is provided. The metallic structure comprises a graded region comprising a plurality of grains having a gradient in grain size varying as a function of position between a first median grain size at an outer region and a second median grain size at an inner region and a plurality of dispersoids dispersed within the microstructure. The first median grain size is different from the second median grain size. A method of forming a metallic structure having a graded microstructure is also provided. The method comprises: providing a metallic structure comprising at least one reactive species; diffusing at least one reactant at a controlled rate from an outer region of the metallic structure towards an inner region of the metallic structure to form a gradient in reactant activity; reacting the reactant with the reactive species to form a plurality of dispersoids; and heat treating the metallic structure to achieve grain growth so as to form a graded microstructure.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: MICHAEL FRANCIS XAVIER GIGLIOTTI, PAZHAYANNUR RAMANATHAN SUBRAMANIAN, SUNDAR AMANCHERLA, KRISHNAMURTHY ANAND, DHEEPA SRINIVASAN, CANAN USLU HARDWICKE
  • Patent number: 7381282
    Abstract: A Co alloy target comprising 1 to 10 atomic % of Zr and 1 to 10 atomic % of Nb and/or Ta, the balance being unavoidable impurities and Co, is produced by rapidly solidifying a melt of the Co alloy to produce an alloy powder, classifying the alloy powder to maximum particle size of 500 ?m or less, and pressure-sintering the classified alloy powder.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: June 3, 2008
    Assignee: Hitachi Metals, Ltd.
    Inventors: Tomonori Ueno, Hide Ueno, Hiroshi Takashima, Mitsuharu Fujimoto
  • Publication number: 20080066831
    Abstract: A wroughtable, cobalt alloy capable of through thickness nitridation and strengthening using practical treatments and practical sheet thicknesses contains in weight percent about 23 to about 30% chromium, about 15 to about 25% iron, up to about 27.3% nickel, about 0.75 to about 1.7% titanium, about 0.85 to about 1.9% niobium or zirconium, up to 0.2% carbon, up to 0.015% boron, up to 0.015% rare earth elements, up to 0.5% aluminum, up to 1% manganese, up to 1% silicon, up to 1% tungsten, up to 1% molybdenum, and the balance cobalt plus impurities and the total weight percent of titanium plus niobium or equivalents is from about 1.6 to about 3.6.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 20, 2008
    Inventor: S. Krishna Srivastava
  • Patent number: 7261955
    Abstract: Protective layers of the MCrAlX type according to the prior art are often provided with a platinum layer to prevent diffusion of elements out of the base material into the MCrAlX. The MCrAlX alloy according to the invention includes halogens (F, Cl, Br, I), which prevent this diffusion, in particular of titanium.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: August 28, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Schütze, Werner Stamm