Cobalt Base Patents (Class 148/425)
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Patent number: 11193182Abstract: 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: GrantFiled: March 22, 2017Date of Patent: December 7, 2021Assignee: Andritz Technology and Asset Management GmbHInventors: Pierre-Jerome Borrel, Eric Blake
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Patent number: 10760686Abstract: 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: GrantFiled: October 11, 2017Date of Patent: September 1, 2020Assignee: Raytheon Technologies CorporationInventors: Dilip M. Shah, Pantcho Stoyanov, Chris Vargas
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Patent number: 10583223Abstract: 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: GrantFiled: September 21, 2015Date of Patent: March 10, 2020Assignee: MEDACTA INTERNATIONAL SAInventors: Katharina M. Fromm, Priscilla S. Brunetto
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Patent number: 10570492Abstract: 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: GrantFiled: September 30, 2014Date of Patent: February 25, 2020Assignee: NIPPON STEEL CORPORATIONInventors: Tomonori Kunieda, Yoshitsugu Tatsuzawa, Kenichi Mori, Hideki Fujii
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Patent number: 10391557Abstract: 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: GrantFiled: May 26, 2016Date of Patent: August 27, 2019Assignee: KENNAMETAL INC.Inventors: James A. Faust, Daniel Bourlotos, Qingjun Zheng, Michael Meyer
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Patent number: 10266958Abstract: 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: GrantFiled: October 28, 2014Date of Patent: April 23, 2019Assignee: United Technologies CorporationInventor: Michael N. Task
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Patent number: 10130449Abstract: 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: GrantFiled: September 14, 2015Date of Patent: November 20, 2018Assignee: Seiko Epson CorporationInventors: Hidefumi Nakamura, Teruo Anraku
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Patent number: 9803263Abstract: 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: GrantFiled: September 11, 2013Date of Patent: October 31, 2017Assignee: Sandvik Intellectual Property ABInventor: Tomas Berglund
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Patent number: 9757224Abstract: 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: GrantFiled: June 5, 2013Date of Patent: September 12, 2017Assignee: BIOTRONIK AGInventor: Bodo Gerold
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Patent number: 9468995Abstract: 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: GrantFiled: September 26, 2012Date of Patent: October 18, 2016Assignee: WISCO Tailored Blanks GmbHInventors: Max Brandt, Arndt Breuer, Robert Vollmer, Ralf Kolleck
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Patent number: 9427500Abstract: 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: GrantFiled: June 10, 2013Date of Patent: August 30, 2016Assignee: BIOTRONIK AGInventor: Bodo Gerold
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Patent number: 9365913Abstract: 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: GrantFiled: May 3, 2012Date of Patent: June 14, 2016Assignee: DAIDO STEEL CO., LTD.Inventors: Kaoru Imaizumi, Shigeki Ueta
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Patent number: 9336937Abstract: 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: GrantFiled: July 3, 2013Date of Patent: May 10, 2016Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yukiko Takahashi, Srinivasan Ananthakrishnan, Varaprasad Bollapragada, Rajanikanth Ammanabrolu, Jaivardhan Sinha, Masamitsu Hayashi, Takao Furubayashi, Shinya Kasai, Shigeyuki Hirayama, Seiji Mitani, Kazuhiro Hono
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Patent number: 9269389Abstract: 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: GrantFiled: October 21, 2010Date of Patent: February 23, 2016Assignee: JX Nippon Mining & Metals CorporationInventor: Atsutoshi Arakawa
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Patent number: 8840735Abstract: 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: GrantFiled: September 18, 2009Date of Patent: September 23, 2014Assignee: Fort Wayne Metals Research Products CorpInventor: Jeremy E. Schaffer
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Patent number: 8764919Abstract: 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: GrantFiled: September 4, 2009Date of Patent: July 1, 2014Assignee: Alstom Technology LtdInventors: Mohamed Nazmy, Andreas Künzler, Markus Staubli
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Patent number: 8679268Abstract: 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: GrantFiled: September 30, 2010Date of Patent: March 25, 2014Assignee: JX Nippon Mining & Metals CorporationInventors: Shin-ichi Ogino, Atsushi Sato, Yuichiro Nakamura, Atsutoshi Arakawa
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Publication number: 20140060707Abstract: 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: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: QuesTek Innovations LLCInventors: James A. Wright, Jeremy Hoishun Li
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Patent number: 8663402Abstract: 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: GrantFiled: February 11, 2011Date of Patent: March 4, 2014Assignee: JX Nippon Mining & Metals CorporationInventors: Yuichiro Nakamura, Akira Hisano
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Publication number: 20130259735Abstract: 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: ApplicationFiled: May 2, 2013Publication date: October 3, 2013Inventors: Akihiko Chiba, Shingo Kurosu, Naoyuki Nomura
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Patent number: 8529710Abstract: 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: GrantFiled: April 7, 2008Date of Patent: September 10, 2013Assignee: Japan Science and Technology AgencyInventors: Kiyohito Ishida, Kiyoshi Yamauchi, Ryosuke Kainuma, Yuji Sutou, Toshihiro Omori
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Patent number: 8524017Abstract: 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: GrantFiled: July 26, 2010Date of Patent: September 3, 2013Assignee: AVIO S.p.A.Inventor: Giovanni Paolo Zanon
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Publication number: 20130195709Abstract: 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: ApplicationFiled: June 23, 2011Publication date: August 1, 2013Applicant: SUPERIOR METALS SWEDEN ABInventors: Sathees Ranganathan, Sohrab Solaimanzadeh-Azar, Hasse Fredriksson, Advenit Makaya
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Patent number: 8460485Abstract: 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: GrantFiled: September 2, 2009Date of Patent: June 11, 2013Assignee: Tohoku UniversityInventors: Shingo Kurosu, Akihiko Chiba, Hiroaki Matsumoto
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Patent number: 8277575Abstract: 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: GrantFiled: February 19, 2010Date of Patent: October 2, 2012Assignee: International Business Machines CorporationInventor: Claudia Felser
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Patent number: 8075839Abstract: 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: GrantFiled: September 15, 2006Date of Patent: December 13, 2011Assignee: Haynes International, Inc.Inventor: S. Krishna Srivastava
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Patent number: 8021499Abstract: 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: GrantFiled: April 7, 2008Date of Patent: September 20, 2011Assignee: Japan Science and Technology AgencyInventors: Kiyohito Ishida, Kiyoshi Yamauchi, Ryosuke Kainuma, Yuji Sutou, Toshihiro Omori
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Patent number: 7927434Abstract: 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: GrantFiled: February 15, 2005Date of Patent: April 19, 2011Assignee: JX Nippon Mining & Metals CorporationInventors: Yuichiro Nakamura, Akira Hisano
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Publication number: 20110073217Abstract: 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: ApplicationFiled: September 25, 2009Publication date: March 31, 2011Inventors: Blair A. Smith, Aaron T. Nardi, Kevin M. Rankin, Patrick Louis Clavette
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Patent number: 7909949Abstract: 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: GrantFiled: February 15, 2005Date of Patent: March 22, 2011Assignee: JX Nippon Mining & Metals CorporationInventors: Yuichiro Nakamura, Akira Hisano
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Publication number: 20110041966Abstract: 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: ApplicationFiled: April 7, 2008Publication date: February 24, 2011Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kiyohito ISHIDA, Kiyoshi YAMAUCHI, Ryosuke KAINUMA, Yuji SUTOU, Toshihiro OMORI
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Patent number: 7857916Abstract: 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: GrantFiled: April 9, 2004Date of Patent: December 28, 2010Assignee: NHK Spring Co., LtdInventors: Akihiko Chiba, Yoshiki Ono, Shigemi Sato, Michihiko Ayada, Takeshi Suzuki, Morimichi Kai, Masashi Sakamoto
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Patent number: 7794652Abstract: 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: GrantFiled: December 8, 2005Date of Patent: September 14, 2010Assignee: The Argen CorporationInventor: Paul J. Cascone
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Patent number: 7691215Abstract: 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: GrantFiled: February 22, 2002Date of Patent: April 6, 2010Assignee: International Business Machines CorporationInventor: Claudia Felser
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Patent number: 7622012Abstract: 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: GrantFiled: February 9, 2006Date of Patent: November 24, 2009Assignee: Mitsubishi Materials CorporationInventors: Gakuji Uozumi, Ryoji Nakayama, Yasushi Nayuki
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Patent number: 7608172Abstract: 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: GrantFiled: August 11, 2003Date of Patent: October 27, 2009Assignee: Praxair S.T. Technology, Inc.Inventors: Andrew C. Perry, Holger J. Koenigsmann, David E. Dombrowski, Thomas J. Hunt
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Patent number: 7601230Abstract: 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: GrantFiled: September 27, 2007Date of Patent: October 13, 2009Assignee: Scimed Life Systems, Inc.Inventor: Charles Horace Craig
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Patent number: 7588650Abstract: 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: GrantFiled: March 18, 2005Date of Patent: September 15, 2009Assignee: Hitachi, Ltd.Inventors: Noboru Baba, Kazuya Nishi
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Patent number: 7578893Abstract: 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: GrantFiled: August 18, 2005Date of Patent: August 25, 2009Assignee: Vacuumschmelze GmbH & Co. KGInventors: Hartwin Weber, Waldemar Döring, Matthias Schierling
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Patent number: 7569116Abstract: 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: GrantFiled: February 9, 2006Date of Patent: August 4, 2009Assignee: NHK Spring Co., Ltd.Inventors: Yoshiki Ono, Masashi Sakamoto
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Patent number: 7465495Abstract: 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: GrantFiled: October 14, 2004Date of Patent: December 16, 2008Assignee: Mitsu Mining & Smelting Co., Ltd.Inventors: Shoichi Fujiyasu, Tomio Hayashi, Koichi Katsuyama, Hiroyuki Shimamura
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Publication number: 20080289730Abstract: 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: ApplicationFiled: April 30, 2008Publication date: November 27, 2008Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kiyohito Ishida, Ryosuke Kainuma, Katsunari Oikawa, Yuji Sutou, Toshihiro Omori, Keisuke Ando
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Publication number: 20080251163Abstract: 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: ApplicationFiled: March 28, 2005Publication date: October 16, 2008Applicant: IWATE UNIVERSITYInventors: Akihiko Chiba, Shingo Kurosu, Naoyuki Nomura
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Patent number: 7435485Abstract: 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: GrantFiled: June 27, 2005Date of Patent: October 14, 2008Assignee: Sony CorporationInventors: Wei Beng Ng, Akio Takada
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Publication number: 20080185075Abstract: 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: ApplicationFiled: April 7, 2008Publication date: August 7, 2008Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Kiyohito ISHIDA, Kiyoshi YAMAUCHI, Ryosuke KAINUMA, Yuji SUTOU, Toshihiro OMORI
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Publication number: 20080163959Abstract: 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: ApplicationFiled: January 10, 2007Publication date: July 10, 2008Inventor: Steven C. Nemish
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Publication number: 20080142126Abstract: 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: ApplicationFiled: December 14, 2006Publication date: June 19, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: MICHAEL FRANCIS XAVIER GIGLIOTTI, PAZHAYANNUR RAMANATHAN SUBRAMANIAN, SUNDAR AMANCHERLA, KRISHNAMURTHY ANAND, DHEEPA SRINIVASAN, CANAN USLU HARDWICKE
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Patent number: 7381282Abstract: 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: GrantFiled: April 5, 2005Date of Patent: June 3, 2008Assignee: Hitachi Metals, Ltd.Inventors: Tomonori Ueno, Hide Ueno, Hiroshi Takashima, Mitsuharu Fujimoto
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Publication number: 20080066831Abstract: 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: ApplicationFiled: September 15, 2006Publication date: March 20, 2008Inventor: S. Krishna Srivastava
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Patent number: 7261955Abstract: 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: GrantFiled: February 17, 2006Date of Patent: August 28, 2007Assignee: Siemens AktiengesellschaftInventors: Michael Schütze, Werner Stamm