Over 2 Percent Silicon Containing Patents (Class 420/78)
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Patent number: 11993833Abstract: Provided is a soft magnetic metal powder including a plurality of soft magnetic metal particles. Each of the soft magnetic metal particles includes a metal particle and an oxidized part covering the metal particle. The metal particle includes at least Fe. The oxidized part includes at least one kind of element of S and an element M. The element M is at least one kind of element selected from the group consisting of Nb, Ta, W, Zr, Hf, and Cr. A unit of a concentration of each of S and the element M in the metal particle and the oxidized part is atom %. The concentration of S or the element M in the metal particle and the oxidized part has a maximum value in the oxidized part.Type: GrantFiled: July 27, 2020Date of Patent: May 28, 2024Assignee: TDK CorporationInventors: Satoko Mori, Kazuhiro Yoshidome, Akito Hasegawa, Hiroyuki Matsumoto
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Patent number: 9892834Abstract: A coil component having a magnetic material and a coil formed on a surface of or inside the magnetic material. The magnetic material is constituted by a grain compact formed by compacting multiple metal grains that in turn are constituted by an Fe—Si—M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), wherein individual metal grains have oxide film formed at least partially around them; the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains; and the apparent density of the grain compact 1 is 5.2 g/cm3 or more, or preferably 5.2 to 7.0 g/cm3.Type: GrantFiled: December 26, 2013Date of Patent: February 13, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Hideki Ogawa, Atsushi Tanada
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Publication number: 20150013845Abstract: A hot strip for producing an electric steel sheet has the following alloy composition in weight %: C: 0.001 to 0.08 Al: 4.8 to 20 Si: 0.05 to 10 B: up to 0.1 Zr: up to 0.1 Cr: 0.1 to 4, remainder iron and melting related impurities.Type: ApplicationFiled: January 30, 2013Publication date: January 15, 2015Inventors: Zacharias Georgeou, Alexander Redenius
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Publication number: 20130337215Abstract: A used component, such as an engine block or engine head, has at least one dimension that does not match a dimensional specification for the component. A thermal spray coating of FeAlSiC is applied to build up the dimension. The excess coating is milled off so that the body and coating have a second shape that matches the dimensional specification for the component. The coating has an ordered DO3 crystal structure with a stable aluminum oxide scale that produces oxidation resistance at about 700° C.Type: ApplicationFiled: June 19, 2012Publication date: December 19, 2013Applicant: CATERPILLAR, INC.Inventors: Robert Eugene Sharp, Kegan Jon Luick, M. Brad Beardsley, Kristin Ann Schipull, Daniel Joseph Sordelet, Jarrod David Moss, Mark David Veliz
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Patent number: 8257646Abstract: UHC lightweight structural steel with improved scaling resistance, comprising the composition in % by weight C: 1 to 1.6, Al: 5 to 10, Cr: 0.5 to 3, Si: 0.1 to 2.8, the remainder iron and customary impurities accompanying steel, and a method for producing components hot-formed from this in air, wherein hot-forming temperatures of from 800 to 1050° C. are used, depending on the Si content.Type: GrantFiled: August 21, 2007Date of Patent: September 4, 2012Assignee: Daimler AGInventors: Tilmann Haug, Wolfgang Kleinekathoefer, Frédéric Pol
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Patent number: 7935883Abstract: A thermoelectric material has a composition expressed by (Fe1-pVp)100-x(Al1-qSiq)x (0.35?p?0.7, 0.01?q?0.7, 20?x?30 atomic %). The thermoelectric material includes a crystal phase having an L21 structure or a crystal phase having a B2 structure as a main phase.Type: GrantFiled: September 4, 2007Date of Patent: May 3, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Shinya Sakurada, Naoki Shutoh
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Publication number: 20100021339Abstract: UHC lightweight structural steel with improved scaling resistance, comprising the composition in % by weight C: 1 to 1.6, Al: 5 to 10, Cr: 0.5 to 3, Si: 0.1 to 2.8, the remainder iron and customary impurities accompanying steel, and a method for producing components hot-formed from this in air, wherein hot-forming temperatures of from 800 to 1050° C. are used, depending on the Si content.Type: ApplicationFiled: August 21, 2007Publication date: January 28, 2010Applicant: Daimler AGInventors: Tilmann Haug, Wolfgang Kleinekathoefer, Frédéric Pol
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Patent number: 7416615Abstract: The invention relates to a high-resistant, low-density hot laminated sheet steel comprising the following elements expressed in weight per cent: 0.04%:9 carbon?0.5%; 0.05%?manganese?3%, being able to contain hardening elements: 0.01%?niobium?0.1 0.01%?titanium?0.2% 0.01?vanadium?0.2%, either individually or combined, and/or elements acting on the transformation temperatures, 0.0005%?boron?0.005%; 0.05%?nickel?2%; 0.05%?chrome?2%; 0.05%?molybdenum?2%, either individually or combined, the remainder being iron and elements which are inherent to production, characterized in that it comprises: 2%?silicon?10%; 1%?aluminium?10%. The invention also relates to the production thereof.Type: GrantFiled: March 10, 2003Date of Patent: August 26, 2008Assignee: USINORInventors: Xavier Bano, Christian Giraud
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Patent number: 6723914Abstract: There is provided a composite magnetic tape which can be easily applied irrespective of the inside or outside of an electronic equipment, prevent radiation of undesired electromagnetic waves from the inside of the equipment and reflection into the inside of the equipment, and shield electromagnetic noise from the outside of the equipment. The tape may be in the form of an adhesive tape or a self-welding tape. The tape is constituted of a composite magnetic layer formed by dispersing soft magnetic powder into an organic binding agent. Alternatively, it may have a stacked structure of a composite magnetic layer and a conductor layer.Type: GrantFiled: February 23, 2000Date of Patent: April 20, 2004Assignee: NEC Tokin CorpInventors: Koji Kamei, Norihiko Ono, Mitsuharu Sato
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Patent number: 6436339Abstract: Systems and methods are described for iron aluminum alloys. A composition includes iron, aluminum and manganese. A method includes providing an alloy including iron, aluminum and manganese; and processing the alloy. The systems and methods provide advantages because additions of manganese to iron aluminum alloys dramatically increase the fluidity of the alloys prior to solidification during casting.Type: GrantFiled: December 14, 1999Date of Patent: August 20, 2002Inventors: Philip J. Maziasz, Alan M. Paris, Joseph D. Vought
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Patent number: 6355212Abstract: The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chromium (Cr) 26.0-30%; aluminum (Al) 5.5-13.0%; yttrium (Y) 0.3-1.5%; silicon (Si) 1.5-4.5%; metal from the second main group (magnesium, calcium, barium, strontium) 0.1-2.0%; oxide of the corresponding metal from the second main group 0.1-2.0%; cobalt (Co) remaining percentage. Preferably, tantalum (Ta) is also added in a proportion of 0.5-4.0%, and the remaining percentage of cobalt is replaced by a remaining percentage of Me, Me being understood to mean a metal which may be nickel (Ni) or iron (Fe) or cobalt (Co) or a composition comprising Ni—Fe—Co, Ni—Fe, Ni—Co, Co—Fe.Type: GrantFiled: January 5, 2000Date of Patent: March 12, 2002Assignee: Turbocoating SpAInventor: Nelso Antolotti
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Patent number: 6312531Abstract: Soft magnetic powder of Fe—Al—Si system of which magnetostrictive constant &lgr; takes a positive value at the room temperature is employed to produce a magnetic composite article so that a temperature characteristic of core-loss of the article takes a negative value at the room temperature. Excellent magnetic characteristics such as a low core-loss and a high permeability can be obtained at a high frequency band.Type: GrantFiled: December 22, 1998Date of Patent: November 6, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuya Matsutani, Yuji Mido, Kazuaki Onishi
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Patent number: 5919319Abstract: An Iron-cobalt alloy, whose chemical composition contains, by weight:5%.ltoreq.Co.ltoreq.40%0%.ltoreq.Si.ltoreq.5%0.2%.ltoreq.Al.ltoreq.5%0.5%.ltoreq.Si+Al.ltoreq.5%the balance being iron and impurities resulting from the smelting. Process for manufacturing a strip and strip obtained.Type: GrantFiled: January 13, 1997Date of Patent: July 6, 1999Assignee: Imphy S.A.Inventor: Georges Couderchon
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Patent number: 5330706Abstract: It is an object to provide a vibration-damping alloy of high strength which has high strength and a high power of damping vibration and can be used to make components of a structure, machine, etc. and reduce effectively any vibration thereof and the noise thereby produced.The vibration-damping alloy of this invention contains more than 0.50 wt. % Si, those proportions of Al and Si which fall within the range defined by a series of points in any of FIGS. 1 to 5, and that proportion of Mn which ranges from 0.1 wt. % to the sum of the proportions of Al and Si, the balance of its composition being Fe and unavoidable impurities. It preferably does not contain more than 0.01 wt. % of any of C, N, O, P and S.Type: GrantFiled: April 2, 1992Date of Patent: July 19, 1994Assignee: NKK CorporationInventors: Takayuki Ohdake, Toshimichi Ohmori, Toshihiro Takamura, Takemi Yamada, Tetsuya Sampei
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Patent number: 5200145Abstract: The present invention relates to a novel process for producing silicon and/or aluminum containing iron alloy product as well as the material produced from same in either sheet or bulk structure form for electromagnetic circuit application. The process entails modifying an iron feedstock containing less than about 2.5 wt % silicon, aluminum or a combination thereof. The process further consists of diffusion of silicon or silicon and aluminum or aluminum into an iron feedstock by a pack diffusion or a chemical vapor deposition method in which the iron feedstock is heated to a temperature at which diffusion occurs in the presence of a pack containing silicon and/or aluminum sources, a reducing agent, a catalyst, and a filler, or in the presence of a flowing gas stream containing a volatile silicon compound. The resulting iron alloy product, which has a silicon content in the range of 0.Type: GrantFiled: July 12, 1991Date of Patent: April 6, 1993Assignee: Exxon Research and Engineering Co.Inventors: Richard C. Krutenat, Robert S. Barnard, John P. Dismukes, Bernard H. Kear, Horst Witzke
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Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
Patent number: 5156922Abstract: Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said particles and having a saturation magnetization of not less than 125 emu/g and an S.F.D. value of not more than 0.50, and a process for producing the same.Type: GrantFiled: July 8, 1991Date of Patent: October 20, 1992Assignee: Toda Kogyo CorporationInventors: Akio Mishima, Mamoru Tanihara, Yasutaka Ota, Hirofumi Kawasaki, Kenji Okinaka, Kunio Ikemoto, Kousaku Tamari, Kohji Mori, Norimichi Nagai -
Patent number: 5073214Abstract: A magnetic material having an Fe-Si-Al type magnetic alloy with addition of one or more additive elements selected from a group consisting of Be, Mg, Ca, Sr, Ba, Sc, Y, Nb, Ta and Hf. The material has been subjected to an oxidation heat-treatment so as to contain a predetermined amount of oxygen.Type: GrantFiled: October 20, 1989Date of Patent: December 17, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Ken Hirota, Mitsuo Satomi, Koichi Kugimiya
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Patent number: 4865662Abstract: An austenitic stainless steel alloy has a composition of about 6 to about 13 percent aluminum, about 7 to about 34 percent manganese, about 0.2 to about 2.4 percent carbon, 0.4 to about 1.3 percent silicon, about 0 to about 6 percent chromium, about 0.5 to about 6 percent nickel, and the balance essentially iron. The relative quantities of the foregoing elements are selected from these ranges to produce a volume percent of ferrite structure in the alloy in the range of about 1 percent to about 8 percent.Type: GrantFiled: March 3, 1988Date of Patent: September 12, 1989Assignee: Ipsco Inc.Inventors: James M. Zimmer, William D. Bailey
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Patent number: 4820485Abstract: A method of producing an alloy containing at least one major ingredient selected from the group consisting of iron (Fe), cobalt (Co), and Nickel (Ni) and having low contents of sulphur, oxygen, and nitrogen, comprises steps of:(a) holding a molten alloy in a container selected from the group consisting of a lime crucible, a lime crucible furnace, a converter and a ladle lined with a basic refractory consisting of 15-85% of calcium oxide (CaO), and 15-75% of magnesium oxide (MgO), wherein said alloy consists essentially of at least one major ingredient selected from the group consisting of iron (Fe), nickel (Ni), and cobalt (Co);(b) adding at least one additive, based on the molten alloy, into said molten alloy in an atmosphere selected from the group consisting of a non-oxidizing atmosphere and a vacuum, wherein said additive is selected from the group consisting of aluminum (Al), aluminum alloys, silicon and silicon alloys;(c) desulphurizing, deoxidizing and denitrifying said molten alloy under an atmosphereType: GrantFiled: February 3, 1987Date of Patent: April 11, 1989Assignees: Mitsui Engineering and Ship Building Co., Ltd., Metal Research CorporationInventors: Tohei Ototani, Toru Degawa, Kenichi Kusumoto, Makoto Ebata
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Patent number: 4735865Abstract: Disclosed is a magnetic head core material having very high corrosion resistance even under severe conditions and a method for preparing the same. The material consists of 3 to 6 wt % of aluminum, 7 to 12 wt % of silicon, not more than 3 wt % of chromium and the substantial balance being iron.Type: GrantFiled: June 6, 1986Date of Patent: April 5, 1988Assignee: Sharp Kabushiki KaishaInventors: Kumio Nago, Masaru Kadono, Tatsushi Yamamoto, Tetsurou Muramatsu, Mitsuhiko Yoshikawa
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Patent number: 4683012Abstract: A magnetic thin film consisting essentially of Fe, Al and Si and further containing nitrogen has high magnetic permeability and high hardness without lowering the magnetic properties such as saturation magnetic flux density or coercive force.The magnetic thin film has an increased specific resistivity and a lowered eddy current loss in the high frequency region and is suitable for a core material of magnetic transducer heads used in a high frequency region.The magnetic thin film is prepared by, for example, physical vapor deposition or ion implantation.Type: GrantFiled: April 5, 1985Date of Patent: July 28, 1987Assignee: Sony CorporationInventors: Kazushi Yamauchi, Muneyuki Ogata, Tomio Kobayashi, Makoto Kubota, Tatsuo Kumura
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Patent number: 4671828Abstract: A magnetic thin film consisting essentially of Fe, Al and Si and further containing oxygen has high magnetic permeability and high hardness without lowering the magnetic properties such as saturation magnetic flux density or coercive force.The magnetic thin film has an increased specific resistivity and a lowered eddy current loss in the high frequency region and is suitable for a core material of magnetic transducer heads used in a high frequency region.The magnetic thin film is prepared by, for example, physical vapor deposition or ion implantation.Type: GrantFiled: April 5, 1985Date of Patent: June 9, 1987Assignee: Sony CorporationInventors: Kazushi Yamauchi, Muneyuki Ogata, Tomio Kobayashi, Makoto Kubota, Tatsuo Kumura
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Patent number: 4668310Abstract: Amorphous alloys having high strength, high hardness, high crystallization temperature, high saturation magnetic induction, low coercive force, high magnetic permeability and particularly low deterioration of magnetic properties with lapse of time, have a composition formula ofT.sub.a X.sub.b Z.sub.c or T.sub.a' X.sub.b' Z.sub.c' M.sub.d,whereinT is at least one of Fe, Co and Ni,X is at least one of Zr, Ti, Hf and Y,Z is at least one of B, C, Si, Al, Ge, Bi, S and P,a is 70-98 atomic %,b is not more than 30 atomic %,c is not more than 15 atomic %,sum of a, b and c is 100 atomic %,M is at least one Mo, Cr, W, V, Nb, Ta, Cu, Mn, Zn, Sb, Sn, Be, Mg, Pd, Pt, Ru, Os, Rh, Ir, Ce, La, Pr, Nd, Sm, Eu, Gd, Tb and Dy,a' is 70-98 atomic %,b' is not more than 30 atomic %,c' is not more than 15 atomic %,d is not more than 20 atomic %, andsum of a', b', c' and d is 100 atomic %.Type: GrantFiled: March 14, 1983Date of Patent: May 26, 1987Assignees: Hitachi Metals, Ltd., Hitachi, Ltd.Inventors: Mitsuhiro Kudo, Shinji Takayama, Yoshizo Sawada, Yasunobu Ogata