Next To Co-, Fe-, Or Ni-base Component Patents (Class 428/667)
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Patent number: 11926120Abstract: This steel sheet for hot stamping includes a base material, an Al—Si alloy plating layer in which the Al content is 75 mass % or more, the Si content is 3 mass % or more and the total of the Al content and the Si content is 95 mass % or more and a Ni plating layer in which the Ni content is more than 90 mass % in this order, the chemical composition of the base material is, by mass %, C: 0.01% or more and less than 0.70%, Si: 0.005% to 1.000%, Mn: 0.40% to 3.00%, Nb: 0.010% to 0.200%, a solid solution of Nb: 0.010% to 0.150%, sol. Al: 0.00020% to 0.50000%, P: 0.100% or less, S: 0.1000% or less, N: 0.0100% or less, Cu: 0% to 1.00%, Ni: 0% to 1.00%, V: 0% to 1.00%, Ti: 0% to 0.150%, Mo: 0% to 1.000%, Cr: 0% to 1.000%, B: 0% to 0.0100%, Ca: 0% to 0.010%, REM: 0% to 0.300%, and a remainder: Fe and an impurity, the Al—Si alloy plating layer has a thickness of 7 to 148 ?m, and the Ni plating layer has a thickness of more than 200 nm and 2500 nm or less.Type: GrantFiled: May 13, 2021Date of Patent: March 12, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Takayuki Harano, Yuji Sakiyama, Akinobu Kobayashi
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Patent number: 11542620Abstract: A steel sheet for a container according to the present invention includes: a base steel sheet; a metal chromium layer; and a chromium-containing layer, in which the metal chromium layer is located on at least one surface of the base steel sheet, the chromium-containing layer is located on the metal chromium layer and contains a granular trivalent chromium compound, or contains a granular trivalent chromium compound and granular metal chromium, the metal chromium layer and the chromium-containing layer are separately disposed in two layers on the base steel sheet, in the chromium-containing layer, an average particle size of the trivalent chromium compound and the metal chromium is 10 nm or more and 100 nm or less, and an adhesion amount of the chromium-containing layer is 1.0 mg/m2 or more and 100 mg/m2 or less in terms of a Cr content.Type: GrantFiled: February 8, 2019Date of Patent: January 3, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Yoshiaki Tani, Shigeru Hirano
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Publication number: 20150132604Abstract: A coating for protecting a base material from wear and corrosion includes a first layer deposited directly onto an outer surface of the base material. In addition, the coating includes a second layer deposited directly onto the first layer. The first layer is positioned between the base material and the second layer. The first layer includes chromium having a first micro-crack density and the second layer comprises chromium having a second micro-crack density that is less than the first micro-crack density.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Applicant: National Oilwell DHT, L.P.Inventors: Jiinjen Albert Sue, Unnikrishnan C. Vasudevan, Rajagopala N. Pillai
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Patent number: 8993118Abstract: According to the present invention, a steel sheet for a container excellent in corrosion resistance, adhesion, and weldability is provided, which includes a steel sheet; a Ni plating layer which is formed on a surface of the steel sheet in an amount of plating deposition containing a Ni amount of 0.3 to 3 g/m2 and contains Co in the range of 0.1 to 100 ppm; and a chromate coating layer which is formed on a surface of the Ni plating layer in an amount of coating deposition containing a converted Cr amount of 1 to 40 mg/m2.Type: GrantFiled: March 24, 2011Date of Patent: March 31, 2015Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Shigeru Hirano, Makoto Kawabata
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Publication number: 20150017469Abstract: The invention relates to sheet steel for use as packaging steel, made of a non-alloy or low-alloy and cold-rolled steel having a carbon content of less than 0.1%. According to the invention, in order to use such sheet steel for packaging steel that has good formability and can be produced in a cost-effective way, the sheet steel contains less than 0.4 wt % of manganese, less than 0.04 wt % of silicium, less than 0.1 wt % of aluminum, and less than 0.1 wt % of chromium and is provided with a multi-phase structure, comprising ferrite and at least one of the structure constituents martensite, bainite, and/or residual austenite. The invention further relates to a method for producing such packaging steel from cold-rolled sheet steel.Type: ApplicationFiled: October 2, 2012Publication date: January 15, 2015Inventors: Reiner Sauer, Burkhard Kaup, Dirk Matusch, Dimitrios Nouskalis
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Patent number: 8846211Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.Type: GrantFiled: November 21, 2005Date of Patent: September 30, 2014Assignee: Sandvik Intellectual Property ABInventors: Mikael Schuisky, Finn Petersen, Niels Christiansen, Joergen Gutzon Larsen, Soeren Linderoth, Lars Mikkelsen
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Publication number: 20140127532Abstract: The invention relates to a substrate with a corrosion resistant coating comprising at least one nickel layer and at least one chromium layer as finish. Between these layers, at least one tin-nickel alloy layer is deposited for suppression of corrosion reactions determined by CASS and Russian mud tests. The invention relates also to a method for producing such substrates with corrosion resistant coating.Type: ApplicationFiled: December 23, 2011Publication date: May 8, 2014Applicant: Coventya S.p.A.Inventors: Gianluigi Schiavon, Diego Dal Zilio
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Patent number: 8697249Abstract: A coated article includes a substrate and a color layer formed on the substrate. The color layer is a chromium-aluminum-silicon layer containing chromium atoms, aluminum atoms and silicon atoms. The color layer has an L* value between about 25 to about 28, an a* value between about ?1 to about ?6, and a b* value between about ?5 to about ?9 in the CIE L*a*b* (CIE LAB) color space. A method for making the coated article is also described.Type: GrantFiled: April 17, 2013Date of Patent: April 15, 2014Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) LimitedInventor: Chun-Jie Zhang
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Publication number: 20140004380Abstract: The invention relates to a method for producing a grain-orientated electric steel which is coated with a phosphate layer and in which there is applied to the electric steel a phosphate solution which contains a colloid component and at least one colloid stabiliser (A) and/or at least one pickling inhibitor (B), the phosphate solution containing at least one compound which has chromium in the oxidation stage III (chromium (III) compound). Grain-orientated electric steel produced with the method according to the invention is distinguished by excellent optical properties and a high tensile stress.Type: ApplicationFiled: September 21, 2011Publication date: January 2, 2014Applicant: ThyssenKrupp Electrical Steel GmbHInventors: Christof Holzapfel, Stefan Pahlke, Carsten Schepers, Heiner Schrapers
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Patent number: 8592050Abstract: A piston ring includes: a refined steel including: carbon C in a range of 0.20% mass to 0.90% mass, silicon Si in a range of 0.10% mass to less than 0.60% mass, manganese Mn in a range of 0.20% mass to 1.50% mass, chromium Cr in a range of 0.30% mass to 2.00% mass, and a remnant including: iron Fe, and an unavoidable impurity. A parameter A calculated from the following expression (1) based on contents of the Si, Mn and Cr is 9.0 or less: parameter A=8.8 Si+1.6 Mn+1.7 Cr—expression (1). A parameter B calculated from the following expression (2) based on contents of the C, Si, Mn and Cr is 10.8 or more: parameter B=36 C+4.2 Si+3.8 Mn+4.5 Cr—expression (2).Type: GrantFiled: March 3, 2009Date of Patent: November 26, 2013Assignees: Nissan Motor Co., Ltd., Nippon Piston Ring Co., Ltd.Inventors: Junpei Ogawa, Takaaki Kondou, Tomonori Miyazawa, Toyoki Iguchi, Takuma Suzuki, Takeshi Makita, Katsuaki Ogawa, Takahiro Okazaki
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Patent number: 8440321Abstract: A coated article is described. The coated article includes a substrate, a bonding layer formed on the substrate, a plurality of nickel-chromium-nitrogen layers and a plurality of zinc layers formed on the bonding layer. The bonding layer is a nickel-chromium layer. Each nickel-chromium-nitrogen layer interleaves with one zinc layer. One of the nickel-chromium-nitrogen layers is directly formed on the bonding layer. A method for making the coated article is also described.Type: GrantFiled: August 4, 2011Date of Patent: May 14, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Cong Li
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Patent number: 8409724Abstract: A coated article is described. The coated article includes a substrate, a bonding layer formed on the substrate, a plurality of nickel-chromium-nitrogen layers and a plurality of copper-zinc alloy layers formed on the bonding layer. The bonding layer is a nickel-chromium layer. Each nickel-chromium-nitrogen layer interleaves with one copper-zinc alloy layer. One of the nickel-chromium-nitrogen layers is directly formed on the bonding layer. A method for making the coated article is also described.Type: GrantFiled: August 4, 2011Date of Patent: April 2, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Cong Li
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Patent number: 8377569Abstract: A coated article is described. The coated article includes a substrate, a bonding layer formed on the substrate, a plurality of nickel-chromium-nitrogen layers and a plurality of copper-silver-cerium alloy layers formed on the bonding layer. The bonding layer is a nickel-chromium layer. Each nickel-chromium-nitrogen layer interleaves with one copper-silver-cerium alloy layer. One of the nickel-chromium-nitrogen layers is directly formed on the bonding layer. A method for making the coated article is also described.Type: GrantFiled: August 4, 2011Date of Patent: February 19, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Cong Li
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Patent number: 8283051Abstract: A plated product made of a substrate having formed thereon an alloy barrier thin film for preventing copper diffusion contains metal B, which has barrier properties in relation to copper and enables displacement plating with the copper ions contained in an electroless copper plating solution, and metal A, which tends to have less ionization than metal B in an electroless copper plating solution at a pH of 10 or higher; the alloy barrier thin film for preventing copper diffusion has a composition wherein metal A constitutes between 15 and 35 at % of the atoms; and a copper thin film is formed on the alloy barrier thin film by electroless plating using an electroless copper plating solution at a pH of 10 or higher.Type: GrantFiled: July 13, 2009Date of Patent: October 9, 2012Assignee: JX Nippon Mining & Metals CorporationInventors: Junichi Ito, Atsushi Yabe, Junnosuke Sekiguchi, Toru Imori, Yasuhiro Yamakoshi, Shinichiro Senda
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Publication number: 20120164481Abstract: A coated article is described. The coated article includes a stainless steel substrate, a bonding layer formed on the substrate, and a hard layer formed on the bonding layer. The bonding layer is a nickel-chromium alloy layer. The hard layer is a nickel-chromium-boron-nitrogen layer. The mass percentage of nitrogen within the hard layer is gradually increased from the area near the bonding layer to the area away from the bonding layer. A method for making the coated article is also described.Type: ApplicationFiled: August 23, 2011Publication date: June 28, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, CONG LI
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Publication number: 20120164482Abstract: A coated article is described. The coated article includes a stainless steel substrate, a bonding layer formed on the substrate, and a hard layer formed on the bonding layer. The bonding layer is a nickel-chromium alloy layer. The hard layer is a nickel-chromium-boron-carbon-nitrogen layer. The mass percentages of carbon and nitrogen within the hard layer are gradually increased from the area near the bonding layer to the area away from the bonding layer. A method for making the coated article is also described.Type: ApplicationFiled: August 23, 2011Publication date: June 28, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, CONG LI
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Publication number: 20120135266Abstract: A copper foil comprising a plated layer containing nickel and zinc on a copper foil made of an electrolytic copper foil or a rolled copper foil, and a chromium plated layer on the plated layer containing nickel and zinc, wherein the zinc in the plated layer containing nickel and zinc is made of zinc oxide and metal zinc, and the ratio of metal zinc in the zinc oxide and metal zinc is 50% or less. This invention relates to a copper foil for a flexible printed board formed with a polyimide-based resin layer and in particular provides a copper foil having superior adhesive strength between the copper foil and the polyimide-based resin layer, having acid resistance and tin plating solution resistance, having high peel strength, comprising favorable etching properties and gloss level, and suitable for use in a flexible printed board capable of achieving fine patterning of wiring.Type: ApplicationFiled: June 7, 2010Publication date: May 31, 2012Applicant: JX NIPPON MINING & METALS CORPORATIONInventor: Kengo Kaminaga
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Publication number: 20120009464Abstract: The material for metal cases of secondary batteries using a non-aqueous electrolyte includes a steel sheet; and a plated layer that has a Ni layer, and a Cu—Ni layer, which is disposed between the Ni layer and the steel sheet and is in contact with the Ni layer, and is in contact with the steel sheet.Type: ApplicationFiled: March 31, 2010Publication date: January 12, 2012Inventors: Makoto Nakazawa, Kimitaka Hayashi, Takehiro Takahashi
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Patent number: 8088497Abstract: A method for making a housing comprises of providing a metal substrate; forming a base paint coating on the substrate; vacuum depositing a first metal coating on the base paint coating, the first metal coating being a chromium coating or a stainless steel coating; vacuum depositing a second metal coating on the first metal coating, the second metal coating being a commix metal coating containing chromium and stainless steel; and vacuum depositing a third metal coating on the second metal coating, the third metal coating being a stainless steel coating. A housing made by the above mentioned method is also described there.Type: GrantFiled: February 9, 2010Date of Patent: January 3, 2012Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) LimitedInventors: Zong-Hua Hu, Hai-Bo Pan, Xu Li, Yi-Jun Huang, Chwan-Hwa Chiang, Feng-Yuen Dai
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Patent number: 8025983Abstract: A joining method between Fe-based steel and Ti/Ti-based alloys having a joint strength higher than those of base metals by using interlayers. The production of intermetallic compounds at a joint portion between Fe-based steel and Ti/Ti-based alloys can be prevented using interlayers, and strong interface diffusion bonding can be formed at interfaces between interlayers, thereby producing a high-strength joint. Accordingly, the present disclosure can be used to develop high-strength, high-functional advanced composite materials.Type: GrantFiled: July 16, 2009Date of Patent: September 27, 2011Inventors: Min Ku Lee, Jung Gu Lee, Jin-Ju Park, Chang-Kyu Rhee
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Patent number: 7985488Abstract: An ultrathin copper foil with a carrier not causing blistering at a release layer interface, having a low carrier peeling force, friendly to the environment, and enabling easy peeling of a carrier foil and an ultrathin copper foil even under a high temperature environment and a printed circuit board enabling a stable production quality of a base of a printed circuit board for fine pattern applications using the ultrathin copper foil with the carrier, that is, a ultrathin copper foil with a carrier comprising a carrier foil, a diffusion prevention layer, a release layer, and an ultrathin copper foil, wherein the release layer is formed by a metal A for retaining a release property and a metal B for facilitating plating of the ultrathin copper foil, a content “a” of the metal A and a content “b” of the metal B forming the release layer satisfying an equation: 10?a/(a+b)*100?70 and a printed circuit board prepared by using such a ultrathin copper foil with a carrier.Type: GrantFiled: June 30, 2010Date of Patent: July 26, 2011Assignee: The Furukawa Electric Co., Ltd.Inventors: Yuuji Suzuki, Takami Moteki, Kazuhiro Hoshino, Satoshi Fujisawa, Akira Kawakami
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Publication number: 20110033722Abstract: Provided is a wood cutting tool with improved wear resistance and corrosion resistance. A hard fundamental layer (18) of chromium nitride (CrN) is subjected to PVD to be coated on a rake face (16) of a substrate (12) formed of a cemented carbide alloy or a tool steel. The hard fundamental layer (18) has a five-layer structure having a first layer (18a) to a fifth layer (18e) disposed in order from the substrate (12) side. A hard main layer (20) of chromium oxide (Cr2O3) is coated on the outer surface of the fifth layer (18e) of the hard fundamental layer (18). The hard main layer (20), like the hard fundamental layer (18), is formed by PVD. The hard fundamental layer (18) is coated with the hard main layer (20) to suppress corrosion, thereby improving the wear resistance and corrosion resistance of a cemented carbide replaceable knife (10).Type: ApplicationFiled: April 22, 2009Publication date: February 10, 2011Inventors: Toru Minami, Satoru Nishio
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Patent number: 7879459Abstract: A protective coating system includes a coating having a composition that includes about 5-40 wt % of chromium, of about 5-35 wt % of aluminum, about 0.1-9 wt % of at least one of silicon, hafnium, or magnesium, about 0.05-2 wt % of a Group IIIB Periodic Table element, a non-zero amount less than 13 wt % of at least one noble metal selected from platinum, palladium, and gold, and a balance including nickel, cobalt or iron.Type: GrantFiled: June 27, 2007Date of Patent: February 1, 2011Assignee: United Technologies CorporationInventors: Melvin Freling, Kevin W. Schlichting
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Patent number: 7851070Abstract: A diffusion barrier alloy film has a diffusion barrier layer which has more excellent diffusion barrier properties than an Re—Cr alloy film, and can stand usage at higher temperatures (e.g., 1150° C. or higher). The diffusion barrier layer is made of an Re—W alloy ? phase containing 12.5 to 56.5% of W in terms of atomic composition and the remainder of Re excluding unavoidable impurities. A metal base has a surface coated with a diffusion barrier layer. If required, the diffusion barrier layer has a surface coated with a diffusion alloy layer containing 10% or greater and less than 50% of Al, Cr, or Si in terms of atomic composition, providing a high-temperature apparatus member.Type: GrantFiled: January 14, 2005Date of Patent: December 14, 2010Assignee: National University Corporation Hokkaido UniversityInventors: Toshio Narita, Hiroshi Yakuwa
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Publication number: 20100273025Abstract: A brazing method which provides a braze joint having excellent corrosion resistance and a brazed structure including such a braze joint includes assembling a first member and a second member to be joined into a temporary assembly, the first member including a base plate made of a ferrous material and a diffusion suppressing layer laminated on the base plate and composed of a N—Cr alloy essentially including not less than about 15% and not greater than about 40% of Cr, the second member being disposed on the diffusion suppressing layer of the first member with intervention of a brazing material of a Cu—Ni alloy essentially including not less than about 10% and not greater than about 20% of Ni, and maintaining the temporary assembly at a temperature of not less than about 1,200° C.Type: ApplicationFiled: July 2, 2010Publication date: October 28, 2010Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Tsuyoshi Hasegawa, Masaaki Ishio, Shunji Kajikawa, Yoshitsugu Sakamoto, Takayuki Hayashi
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Patent number: 7740936Abstract: Provided is an adhesion assisting agent fitted metal foil, comprising an adhesion assisting agent layer having a thickness of 0.1 to 10 ?m on a metal whose surface has a ten-point average roughness Rz of 2.0 ?m or less, wherein the adhesion assisting agent layer is formed from an adhesion assisting agent composition comprising: (A) an epoxy resin selected from the group consisting of a novolak epoxy resin and an aralkyl epoxy resin; and (C) an epoxy resin curing agent.Type: GrantFiled: November 10, 2005Date of Patent: June 22, 2010Assignee: Hitachi Chemical Co., Ltd.Inventors: Nobuyuki Ogawa, Hitoshi Onozeki, Takahiro Tanabe, Kenji Takai, Norio Moriike, Shin Takanezawa, Takako Ejiri, Toshihisa Kumakura
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Patent number: 7601431Abstract: In one embodiment, a coated turbine article comprising a uniform enhanced coating on at least a portion of the turbine article, wherein the enhanced coating comprises a coating material and a structural enhancer, wherein the structural enhancer is selected from the group consisting of oxide, carbide, nitride, intermetallic material, and combinations comprising at least one of the foregoing, wherein the structural enhancer has an average particle size, as measured along a major axis, of about 0.01 ?m to about 100 ?m.Type: GrantFiled: November 21, 2005Date of Patent: October 13, 2009Assignee: General Electric CompanyInventors: Vinod Kumar Pareek, David A. Helmick
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Patent number: 7585572Abstract: A ball stud having a ball at one end of a rod-shaped stud. The ball stud comprises: a metal plating film formed on the surface of the stud; and a trivalent chromate film continuously formed over both the surface of the metal plating film formed on the stud and the surface of the ball, whereby rust is inhibited in the boundary of the metal plating film. An externally threaded portion is also coated, if formed in the ball stud, on its surface with the metal plating film and the trivalent chromate film.Type: GrantFiled: May 18, 2007Date of Patent: September 8, 2009Assignee: Kyoritsu Seiki Co., Ltd.Inventor: Hirotaka Hattori
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Patent number: 7422797Abstract: In forming a plating layer for a sliding portion, which comprises Cr that is electrolytically-deposited in a plating bath containing Cr, the plating bath contains organic sulfonic acid. Accordingly, micro-cracks are formed at the plating layer. The plating layer for a sliding portion has the superior low friction and lubricating property.Type: GrantFiled: December 19, 2005Date of Patent: September 9, 2008Assignee: Mazda Motor CorporationInventors: Yoshio Tanita, Shinji Kadoshima, Satoshi Nanba
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Publication number: 20080166587Abstract: The invention relates to a component having a coating system, which comprises at least one bonding coat applied directly onto the component and at least one thermal barrier coat formed on the bonding coat, the bonding coat comprising from 22 to 36 wt. % Cr, from 15 to 30 wt. % Ni, at most 55 ppm Al, and Fe as a basis.Type: ApplicationFiled: August 23, 2007Publication date: July 10, 2008Inventors: Jochen Barnikel, Friedhelm Schmitz
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Patent number: 7300706Abstract: A wire for external exposure, i.e. without chemical binding with a polymer or rubber matrix. The wire has a steel core, a nickel sub-coating and a zinc or zinc alloy top coating above the nickel sub-coating. The steel core has a carbon content exceeding 0.20%. The wire is in a work-hardened state by drawing or rolling. The wire has an excellent corrosion resistance and provides an excellent barrier against hydrogen. Preferable uses are wires in off-shore applications.Type: GrantFiled: July 28, 2006Date of Patent: November 27, 2007Assignee: NV Bekaert SAInventors: Ludo Adriaensen, Paul Dambre, Danny Gonnissen, Gilbert Van Loo, Johan Vanbrabant
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Patent number: 7285337Abstract: A composite resistive to high-temperature corrosion and abnormal oxidization, maintains original excellent high-temperature characteristics of Ni alloys over a long period of time, and suitable for applications in a high-temperature such as gas turbines, jet engines, and elements for exhaust-gas systems. A heat-resistant Ni-alloy composite has excellent high-temperature oxidation resistance, including a Ni-alloy substrate that has been subjected to an Al-diffusing treatment. The surface coat has a multi-layer structure including an inner layer composed of an ?-Cr phase and an outer layer composed of a ? phase (Ni—Al—Cr) and a ?? phase (Ni3Al(Cr)) on the substrate surface. The Al content in the outer layer is at least 20 atomic percent. The ?-Cr phase functions as a diffusion-barrier layer. The outer layer retains and secures a high Al content required for self-regeneration of a defective portion of the Al2O3 layer damaged in an operating condition.Type: GrantFiled: March 5, 2003Date of Patent: October 23, 2007Assignee: Japan Science and Technology AgencyInventors: Toshio Narita, Daisuke Yoshida
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Patent number: 7241515Abstract: An electrode layer for thin-film magnetic heads includes a Ta base sub-layer, an Au sub-layer functioning as a main conductive sub-layer, and a protective sub-layer, those sub-layers being disposed in that order. An Au electrode seed sub-layer containing any one of NiFeCr, NiCr, and NiFe is placed between the Ta base sub-layer and the Au sub-layer. The Au electrode seed sub-layer has a thickness of 40 to 100 ?.Type: GrantFiled: May 10, 2004Date of Patent: July 10, 2007Assignee: Alps Electric Co., Ltd.Inventors: Masahiro Oshima, Naoya Hasegawa
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Patent number: 7192655Abstract: Disclosed is a ReCrNi alloy coating for diffusion barrier, such as a high-temperature equipment member, consisting essentially of a ternary alloy and having, except for inevitable impurities, an atomic composition of 20% to 80% Re, an atomic composition of 20% to 60% Cr, and an atomic composition of 5% to 40% Ni. Even if the alloy coating for diffusion barrier includes a diffusion layer containing at least one of the group consisting of Al, Si and Cr, a desired alloy composition of the alloy coating for diffusion barrier can be assured by a surface coating process and diffused components from the substrate while substantially preventing the diffusion of the elements of the diffusion layer during a homogenizing heat treatment. The alloy coating for diffusion barrier may include a Re-containing-alloy stress relief layer inserted between the film and the substrate.Type: GrantFiled: September 13, 2002Date of Patent: March 20, 2007Assignees: Japan Science and Technology Agency, Ebara CorporationInventors: Toshio Narita, Shigenari Hayashi, Takayuki Yoshioka, Hiroshi Yakuwa
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Patent number: 7169480Abstract: A clad pipe includes an external layer and a coating layer made of Ni base anticorrosion alloy. Both end portion areas of the coating layer are formed by a build-up welded layer (Ni base alloy of composition 1) on the inner surface of the external layer. Other areas are formed by a Ni base alloy layer (Ni base alloy of composition 2) fusion-bonded to the build-up welded layers and the inner surface of the pipe, a solidus-curve temperature of the Ni base alloy layer being 1300° C. or below and lower than a solidus-curve temperature of the Ni base alloy formed by build-up welding by 150° C. or more. Composition 1 and composition 2 are adjusted so that, in the same environment, corrosion resistance of the Ni base alloy of composition 1 is equivalent to or superior to that of the Ni base alloy of composition 2.Type: GrantFiled: February 1, 2005Date of Patent: January 30, 2007Assignee: Dai-Ichi High Frequency Co., Ltd.Inventors: Yoichi Matsubara, Akihiro Takeya, Seiichiro Miyata
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Patent number: 7147932Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.Type: GrantFiled: August 11, 2004Date of Patent: December 12, 2006Assignee: Sandvik Intellectual Property ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Patent number: 7147931Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip substrate is provided. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is suitable for shaving equipment, medical instruments, utility and industrial knives as well as saw applications.Type: GrantFiled: August 11, 2004Date of Patent: December 12, 2006Assignee: Sandvik Intellectual Property ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Patent number: 7142399Abstract: An exchange coupling film including an antiferromagnetic layer and a ferromagnetic layer in contact with the antiferromagnetic layer so as to generate an exchange coupling magnetic field is provided. A PtMn alloy is used as the material of the antiferromagnetic layer. Crystal planes of the antiferromagnetic layer and the ferromagnetic layer preferentially aligned parallel to the interface are crystallographically identical and crystallographically identical axes lying in these crystal planes are oriented, at least partly, in different directions between the antiferromagnetic layer and the ferromagnetic layer. Thus, a proper order transformation occurs in the antiferromagnetic layer as a result of heat treatment and an increased exchange coupling magnetic field can be obtained.Type: GrantFiled: July 9, 2001Date of Patent: November 28, 2006Assignee: Alps Electric Co., Ltd.Inventors: Naoya Hasegawa, Masamichi Saito
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Patent number: 7112376Abstract: A magnetic recording medium comprising; a nonmagnetic support; a first under layer which is constituted by a nonmetal element, per se, a compound consisting of nonmetal elements, or a compound containing titanium and a nonmetal element; a second under layer containing at least one element selected from the group consisting of chromium, titanium, iridium, platinum, palladium, ruthenium, rhodium, rhenium and osmium; and a magnetic layer which contains a ferromagnetic metal alloy containing at least cobalt, platinum and chromium, and a nonmagnetic compound, in this order.Type: GrantFiled: January 9, 2004Date of Patent: September 26, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenichi Moriwaki, Kazuyuki Usuki, Masakazu Nishikawa
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Patent number: 7049013Abstract: A magnetic recording medium is provided with a substrate, and a magnetic layer made of a CoCr-based alloy and having a multi-layer structure and disposed above the substrate. The multi-layer structure has a first magnetic layer disposed above the substrate and at least one second magnetic layer disposed on the first magnetic layer on an opposite side from the substrate. The first magnetic layer has a Cr-content larger than that of the second magnetic layer, and has a larger sum total content of nonmagnetic elements which are other than Cr and have a larger atomic radius than Co than the second magnetic layer.Type: GrantFiled: January 29, 2001Date of Patent: May 23, 2006Assignee: Fujitsu LimitedInventors: Kazuhisa Shida, Atsushi Endo, Chiaki Okuyama, Akira Kikuchi
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Patent number: 6994920Abstract: A fusion welding method is provided for fusion welding at juxtaposed interface surfaces a first member, for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member made of a second metal, for example a high temperature alloy based on at least one of Fe, Co, and Ni, including at least one identified element, for example Al, that can form a continuous layer of a brittle intermetallic compound with the first metal that is free of such element. With the interface surfaces disposed in contact, energy is generated at the interface surfaces in a combination of an amount and for a first time selected to be sufficient to heat the interface surfaces to a fusion welding temperature. However, the first time is less than a second time that enables formation at the fusion welding temperature of the continuous layer of the brittle intermetallic compound at the interface surfaces.Type: GrantFiled: October 31, 2003Date of Patent: February 7, 2006Assignee: General Electric CompanyInventor: Gary Edward Trewiler
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Patent number: 6956233Abstract: In plating on an Si substrate, it has been strongly demanded to apply a treatment for providing an excellent adhesion so as to resist a post-processing such as polishing and for facilitating plating. Then, provided is a plated substrate adapted for hard disk medium comprising an Si single crystal; an amorphous layer on the substrate, the amorphous layer having thickness of 2 to 200 nm and containing Si and one or more metals selected from a group consisting of Ni, Cu and Ag; a multicrystal layer on the amorphous layer, the multicrystal layer having thickness of 5 to 1000 nm and containing Si and one or more metals selected from a group consisting of Ni, Cu and Ag.Type: GrantFiled: August 22, 2003Date of Patent: October 18, 2005Assignee: Sin-Etsu Chemical Co., Ltd.Inventors: Toshihiro Tsumori, Masatoshi Ishii, Naofumi Shinya, Yu Hamaguchi, Yukimi Jyoko
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Patent number: 6921586Abstract: A coating system for an article comprising a substrate formed of a metal alloy that is prone to the formation of a deleterious secondary reaction zone (SRZ) as a result of containing more than three weight percent rhenium and at least one additional refractory metal. The coating system comprises an aluminum-containing overlay coating and a diffusion barrier coating between the overlay coating and the substrate. The diffusion barrier coating consists of, in atomic percent, about 20% to about 90% ruthenium, about 2% to about 60% chromium, optionally up to about 50% aluminum, optionally up to about 20% of a platinum-group metal, and the balance at least one of nickel, cobalt, and iron and incidental impurities. The diffusion barrier coating sufficiently inhibits diffusion of aluminum from the overlay coating into the substrate, such that the substrate remains essentially free of SRZ.Type: GrantFiled: October 31, 2003Date of Patent: July 26, 2005Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Jeffrey Allan Pfaendtner, Christine Govern, Melvin Robert Jackson
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Patent number: 6913837Abstract: A perpendicular magnetic recording medium and method thereof, includes a nonmagnetic substrate; a soft magnetic under layer; an intermediate layer; a bilayer magnetic recording layer; a protective layer; and a liquid lubricant layer. According to a following order, the soft magnetic under layer, the intermediate layer, the bilayer magnetic recording layer, the protective layer, and the liquid lubricant layer are sequentially stacked on the nonmagnetic substrate. The bilayer magnetic recording layer includes a first magnetic layer including a CoCr alloy crystalline film, and a second magnetic layer including a rare earth-transition metal alloy noncrystalline film.Type: GrantFiled: July 8, 2002Date of Patent: July 5, 2005Assignee: Fuji Electric Co., Ltd.Inventors: Yasushi Sakai, Hiroyuki Uwazumi, Kazuo Enomoto, Sadayuki Watanabe
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Patent number: 6905781Abstract: A magnetic recording medium includes a textured surface which is textured in a predetermined direction, a Cr-based underlayer provided on the textured surface and having Cr<110> preferred growth along the predetermined direction so that over approximately 50% of Cr<110> are oriented along the predetermined direction, and a Co-based magnetic layer provided on the underlayer and having Co(1120) preferred growth along the predetermined direction.Type: GrantFiled: May 23, 2003Date of Patent: June 14, 2005Assignee: Fujitsu LimitedInventors: Antony Ajan, Iwao Okamoto
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Patent number: 6887586Abstract: Sharp-edged cutting tools and a method of manufacturing sharp-edged cutting tools wherein at least a portion of the sharp-edged cutting tool is formed from a bulk amorphous alloy material are provided.Type: GrantFiled: March 7, 2002Date of Patent: May 3, 2005Assignee: Liquidmetal TechnologiesInventors: Atakan Peker, Scott Wiggins
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Patent number: 6887565Abstract: An inplane magnetic recording medium having high S/N and thermal stability and a reliable magnetic storage device having surface recording density of 50 megabit/mm2 or more is described. The magnetic recording medium includes magnetic layers formed on a nonmagnetic substrate with a plurality of ground layers therebetween, at least one of the ground layers formed from an alloy of a body-centered cubic structure containing Cr as a main component and B of from 2 atomic % to 12 atomic %. Main components of the magnetic layers include a lower magnetic layer containing Co and Cr of from 10 atomic % to 16 atomic %, with film thickness of from 1.5 nm to 4.5 nm, and an upper magnetic layer containing Co, coupling anti-ferromagnetically with the lower magnetic layer through nonmagnetic intermediate layers.Type: GrantFiled: November 27, 2002Date of Patent: May 3, 2005Assignee: Hitachi, Ltd.Inventors: Tetsuya Kanbe, Yotsuo Yahisa, Hiroyuki Suzuki, Hidekazu Kashiwase
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Patent number: 6872478Abstract: The applicants disclose a thin film magnetic media structure with a pre-seed layer of CrTiAl. The CrTiAl pre-seed layer presents an amorphous or nanocrystalline structure. The CrTiAl pre-seed layer improves in-plane c-axis orientation while maintaining a good orientation ratio. The pulse transition width (PW50) is narrowed and the soft error rate is improved. The preferred seed layer is RuAl.Type: GrantFiled: June 26, 2003Date of Patent: March 29, 2005Assignee: Hitachi Global Storage Technologies Netherlands, B.V.Inventors: Xiaoping Bian, Mary Frances Doerner, Kai Tang, Qi-Fan Xiao
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Patent number: 6858331Abstract: A thin film magnetic media structure with a bi-layer structure of amorphous chromium titanium (CrTi) followed by an amorphous layer of nickel phosphorus (NiP) is disclosed. After the NiP has been deposited it is exposed to oxygen to form an oxidized surface. Preferably the underlayer is deposited directly onto the oxidized NiP surface. The bi-layer structure of CrTi/NiP promotes excellent in-plane crystallographic orientation in the cobalt alloy magnetic layer(s) and allows an ultra-thin chromium underlayer to be used which provides better control over grain size and distribution. When the CrTi/NiP bi-layer structure is combined with a circumferentially textured substrate, preferably glass, a high Mrt orientation ratio (OR) results.Type: GrantFiled: August 29, 2003Date of Patent: February 22, 2005Assignee: Hitachi Global Storage Technologies Netherlands, B.V.Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad S. Mirzamaani, Adam Polcyn, Qi-Fan Xiao
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Patent number: 6855437Abstract: The subject of the invention is a layer system for the decorative coating of galvanizable work pieces. In order to have a layer system which meets strict requirements with regard to corrosion resistance and which, at the same time, has a high abrasion resistance and, in addition, provides a high degree of freedom with regard to decorative coloration, the invention proposes a layer system which is formed by galvanic deposition and comprises a base coat consisting of at least one bright layer and one discontinuous chrome layer as well as a cover coat of mechanically resistant materials deposited by the PVD process.Type: GrantFiled: January 26, 2001Date of Patent: February 15, 2005Assignee: Enthone Inc.Inventors: Hiltrud Tolls, Elmar Tolls