Patents by Inventor Bjorn Skarman
Bjorn Skarman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11738389Abstract: An alloy represented by the formula (MnxAly)Cz, the alloy being aluminum (Al), manganese (Mn), and carbon (C), and optionally unavoidable impurities; wherein x=56.0 to 59.0 y=41.0 to 44.0 x+y=100, and z=1.5 to 2.4. The alloy is highly suitable for forming the ? and ? phase in high purity and high microstructural homogeneity. A method for processing an alloy of formula (Mnx?Aly?)Cz?, wherein x?=52.0 to 59.0, y?=41.0 to 48.0, x?+y?=100, and z?=0.1 to 3.0, the process including providing the raw materials of the alloy, melting the raw materials, and forming particles of the alloy by gas atomization of the molten alloy.Type: GrantFiled: September 3, 2018Date of Patent: August 29, 2023Assignee: HÖGANÄS AB (PUBL)Inventors: Hailiang Fang, Martin Häggblad Sahlberg, Bjorn Skarman
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Publication number: 20230249248Abstract: An alloy represented by the formula (MnxAly)Cz, the alloy being aluminum (Al), manganese (Mn), and carbon (C), and optionally unavoidable impurities; wherein x=56.0 to 59.0 y=41.0 to 44.0 x+y=100, and z=1.5 to 2.4. The alloy is highly suitable for forming the ? and ? phase in high purity and high microstructural homogeneity. A method for processing an alloy of formula (Mnx?Aly?)Cz?, wherein x?=52.0 to 59.0, y?=41.0 to 48.0, x?+y?=100, and z?=0.1 to 3.0, the process including providing the raw materials of the alloy, melting the raw materials, and forming particles of the alloy by gas atomization of the molten alloy.Type: ApplicationFiled: February 3, 2023Publication date: August 10, 2023Applicant: Höganäs AB (Publ)Inventors: Hailiang FANG, Martin Häggblad SAHLBERG, Björn SKÅRMAN
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Publication number: 20220165463Abstract: There is provided solid composite material comprising an alloy based on manganese, aluminum and optionally carbon, and dispersed nanoparticles made from a material X, as well as a method of manufacturing the same. The material X is different from manganese, aluminum, carbon or a mixture thereof and satisfying the following requirements the melting temperature of the material X is 1400° C. or higher, preferably 1500° C. or higher; and the material X comprises a metal. The composite material is suitable as a magnetic material or as a precursor of a magnetic material, and allows obtaining improved magnetic properties as compared to existing alloys based on manganese, aluminum and optionally carbon due the presence of the nanoparticles. A magnetic material in shaped form comprising the composite material and an electric or electronic device comprising the magnetic material are also part of the invention.Type: ApplicationFiled: February 27, 2020Publication date: May 26, 2022Applicant: Höganäs AB (Publ)Inventors: Hilmar VIDARSSON, Björn SKÅRMAN, Martin HÄGGBLAD SAHLBERG, Samrand SHAFEIE
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Publication number: 20220041449Abstract: The present invention relates to a method of producing an iron containing compound, iron containing precursor, or iron containing aqueous solution comprising the steps of: providing direct reduced iron; dissolving the direct reduced iron in organic and/or inorganic acids to provide an iron containing aqueous solution, wherein insoluble impurities of the direct reduced iron are maintained in solid form throughout the dissolution process, to obtain an iron containing aqueous solution with suspended insoluble impurities; separating the said insoluble impurities from the iron containing aqueous solution obtaining a purified iron containing aqueous solution; and optionally solidifying said purified iron containing aqueous solution to provide the iron containing compound or iron containing precursor, by drying. The present invention further relates to iron containing compounds, iron containing precursors, and iron containing aqueous solutions, and their use in battery components.Type: ApplicationFiled: December 3, 2019Publication date: February 10, 2022Applicant: Höganäs AB (Publ)Inventors: Per-Olof LARSSON, Björn SKÅRMAN, Hilmar VIDARSSON
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Publication number: 20210062305Abstract: An alloy represented by the formula (MnxAly)Cz, the alloy being aluminum (Al), manganese (Mn), and carbon (C), and optionally unavoidable impurities; wherein x=56.0 to 59.0 y=41.0 to 44.0 x+y=100, and z=1.5 to 2.4. The alloy is highly suitable for forming the ? and ? phase in high purity and high microstructural homogeneity. A method for processing an alloy of formula (Mnx?Aly?)Cz?, wherein x?=52.0 to 59.0, y?=41.0 to 48.0, x?+y?=100, and z?=0.1 to 3.0, the process including providing the raw materials of the alloy, melting the raw materials, and forming particles of the alloy by gas atomization of the molten alloy.Type: ApplicationFiled: September 3, 2018Publication date: March 4, 2021Applicant: Höganäs AB (Publ)Inventors: Hailiang FANG, Martin Häggblad SAHLBERG, Bjorn SKARMAN
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Patent number: 10741316Abstract: A ferromagnetic powder composition including soft magnetic iron-based core particles, wherein the surface of the core particles is provided with at least one phosphorus-based inorganic insulating layer and then at least partially covered with metal-organic compound(s), wherein the total amount of metal-organic compound(s) is between 0.005 and 0.05% by weight of the powder composition, and wherein the powder composition further includes a lubricant. Further, a process for producing the composition and a method for the manufacturing of soft magnetic composite components prepared from the composition, as well as the obtained component.Type: GrantFiled: February 9, 2011Date of Patent: August 11, 2020Assignee: HÖGANÄS AB (PUBL)Inventors: Björn Skårman, Zhou Ye
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Patent number: 9640306Abstract: A ferromagnetic powder composition is provided comprising soft magnetic iron-based core particles having an apparent density of 3.2-3.7 g/ml, and wherein the surface of the core particles is provided with a phosphorus-based inorganic insulating layer and at least one metal-organic layer, located outside the first phosphorus-based inorganic insulating layer. A process further is provided for producing the composition and a method for the manufacturing of soft magnetic composite components prepared from the composition, as well as the obtained component.Type: GrantFiled: September 14, 2010Date of Patent: May 2, 2017Assignee: HOGANAS AB (PUBL)Inventors: Björn Skårman, Zhou Ye
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Patent number: 9397332Abstract: The present invention relates to a combustion method for producing a lithium insertion material for a cathode in a Li-ion battery, the material comprising iron, lithium, silicon, and carbon.Type: GrantFiled: June 7, 2012Date of Patent: July 19, 2016Assignee: HOGANAS AB (PUBL)Inventors: Mohammed Dhabi, Torbjörn Gustafsson, Björn Skårman
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Publication number: 20140145121Abstract: The present invention relates to a combustion method for producing a lithium insertion material for a cathode in a Li-ion battery, the material comprising iron, lithium, silicon, and carbon.Type: ApplicationFiled: June 7, 2012Publication date: May 29, 2014Applicant: HÖGANÄS AB (Publ)Inventors: Mohammed Dhabi, Torbjörn Gustafsson, Björn Skårman
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Patent number: 8647743Abstract: A ferromagnetic powder composition including soft magnetic iron-based core particles, wherein the surface of the core particles is provided with a first inorganic insulating layer and at least one metal-organic layer, located outside the first layer, of a metal-organic compound having the following general formula: (R1[(R1)x(R2)y(MOn-1)]nR1, wherein M is a central atom selected from Si, Ti, Al, or Zr; O is oxygen; R1 is a hydrolysable group; R2 is an organic moiety and wherein at least one R2 contains at least one amino group; wherein n is the number of repeatable units being an integer between 1 and 20; wherein the x is an integer between 0 and 1; wherein y is an integer between 1 and 2; wherein a metallic or semi-metallic particulate compound having a Mohs hardness of less than 3.5 is adhered to a metal-organic layer; wherein the powder composition further includes a particulate lubricant.Type: GrantFiled: August 6, 2012Date of Patent: February 11, 2014Assignee: Hoganas AB (Publ)Inventors: Björn Skårman, Zhou Ye, Hilmar Vidarsson
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Publication number: 20130266794Abstract: A composite part including: a compacted powder composition; and a polymer composite comprising nanometer-sized and/or micrometer-sized reinforcement structures, wherein the composite part has an interpenetrating network between the compacted powder composition and the polymer composite and wherein the reinforcement structures comprise one or more of: particles, platelets, fibers, whiskers, and tubes. A composite part formed by a method including compacting a powder composition including a lubricant into a compacted body; heating the compacted body to a temperature above the vaporization temperature of the lubricant such that the lubricant is substantially removed from the compacted body; subjecting the obtained heat treated compacted body to a liquid polymer composite including nanometer-sized and/or micrometer-sized reinforcement structures; and solidifying the heat treated compacted body comprising liquid polymer composite by drying and/or by at least one curing treatment.Type: ApplicationFiled: June 3, 2013Publication date: October 10, 2013Inventors: PONTUS BERGMARK, BJORN SKARMAN
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Patent number: 8475709Abstract: A method for producing a composite part is provided. The method comprises compacting a powder composition comprising a lubricant into a compacted body; heating the compacted body to a temperature above the vaporization temperature of the lubricant such that the lubricant is substantially removed from the compacted body; subjecting the obtained heat treated compacted body to a liquid polymer composite comprising nanometer-sized and/or micrometer-sized reinforcement structures; and solidifying the heat treated compacted body comprising liquid polymer composite by drying and/or by at least one curing treatment.Type: GrantFiled: March 7, 2008Date of Patent: July 2, 2013Assignee: Hoganas AB (Publ)Inventors: Pontus Bergmark, Björn Skärman
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Publication number: 20130015394Abstract: A ferromagnetic powder composition including soft magnetic iron-based core particles, wherein the surface of the core particles is provided with at least one phosphorus-based inorganic insulating layer and then at least partially covered with metal-organic compound(s), wherein the total amount of metal-organic compound(s) is between 0.005 and 0.05% by weight of the powder composition, and wherein the powder composition further includes a lubricant. Further, a process for producing the composition and a method for the manufacturing of soft magnetic composite components prepared from the composition, as well as the obtained component.Type: ApplicationFiled: February 9, 2011Publication date: January 17, 2013Applicant: HÖGANÄS ABInventors: Björn Skårman, Zhou Ye
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Publication number: 20120292555Abstract: A ferromagnetic powder composition including soft magnetic iron-based core particles, wherein the surface of the core particles is provided with a first inorganic insulating layer and at least one metal-organic layer, located outside the first layer, of a metal-organic compound having the following general formula: (R1[(R1)x(R2)y(MOn-1)]nR1, wherein M is a central atom selected from Si, Ti, Al, or Zr; O is oxygen; R1 is a hydrolysable group; R2 is an organic moiety and wherein at least one R2 contains at least one amino group; wherein n is the number of repeatable units being an integer between 1 and 20; wherein the x is an integer between 0 and 1; wherein y is an integer between 1 and 2; wherein a metallic or semi-metallic particulate compound having a Mohs hardness of less than 3.5 is adhered to a metal-organic layer; wherein the powder composition further includes a particulate lubricant.Type: ApplicationFiled: August 6, 2012Publication date: November 22, 2012Applicant: HOGANAS AB (PUBL)Inventors: Björn Skårman, Zhou Ye, Hilmar Vidarsson
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Publication number: 20120211693Abstract: A ferromagnetic powder composition is provided comprising soft magnetic iron-based core particles having an apparent density of 3.2-3.7 g/ml, and wherein the surface of the core particles is provided with a phosphorus-based inorganic insulating layer and at least one metal-organic layer, located outside the first phosphorus-based inorganic insulating layer. A process further is provided for producing the composition and a method for the manufacturing of soft magnetic composite components prepared from the composition, as well as the obtained component.Type: ApplicationFiled: September 14, 2010Publication date: August 23, 2012Applicant: HOGANAS AB (PUBL)Inventors: Björn Skårman, Zhou Ye
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Patent number: 8236420Abstract: A ferromagnetic powder composition is described comprising soft magnetic iron-based core particles, wherein the surface of the core particles is provided with a first inorganic insulating layer and at least one metal-organic layer, located outside the first layer, of a metal-organic compound having the following general formula: (R1[(R1)x(R2)y(MOn-1)]nR1, wherein M is a central atom selected from Si, Ti, Al, or Zr; O is oxygen; R1 is a hydrolysable group; R2 is an organic moiety and wherein at least one R2 contains at least one amino group; wherein n is the number of repeatable units being an integer between 1 and 20; wherein the x is an integer between 0 and 1; wherein y is an integer between 1 and 2; wherein a metallic or semi-metallic particulate compound having a Mohs hardness of less than 3.5 is adhered to at least one metal-organic layer; and wherein the powder composition further comprises a particulate lubricant.Type: GrantFiled: March 18, 2009Date of Patent: August 7, 2012Assignee: Höganäs AB (Publ)Inventors: Björn Skårman, Zhou Ye, Hilmar Vidarsson
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Patent number: 8187394Abstract: A powder magnetic core is provided for operating at high frequencies that is obtained by pressure forming an iron-based magnetic powder covered with an insulation film, which has a specific resistance more than 1000, preferably more than 2000, and most preferably more than 3000 ??m, and a saturation magnetic flux density B above 1.5, preferably above 1.7, and most preferably above 1.9 (T). A method for the preparation of such cores as well as a powder which is suitable for the preparation also are provided.Type: GrantFiled: December 6, 2007Date of Patent: May 29, 2012Assignee: Hoganas ABInventors: Zhou Ye, Björn Skårman
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Patent number: 8075710Abstract: A process for the manufacture of soft magnetic composite components is provided including the steps of: die compacting a powder composition including a mixture of soft magnetic, iron or iron-based powder, core particles of which are surrounded by an electrically insulating, inorganic coating, and an organic lubricant in an amount of 0.05 to 1.5% by weight of the composition, the organic lubricant being free from metal and having a temperature of vaporization less than the decomposition temperature of the coating; ejecting the compacted body from the die; heating the compacted body in an inert atmosphere to a temperature above the vaporization temperature of the lubricant and below the decomposition temperature of the inorganic coating for removing the lubricant from the compacted body, and subjecting the body obtained after heating the compacted body in an inert atmosphere to heat treatment at a temperature between 300 and 600 in water vapor.Type: GrantFiled: June 15, 2006Date of Patent: December 13, 2011Assignee: Höganäs ABInventors: Björn Skårman, Zhou Ye, Patricia Jansson
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Patent number: 8052806Abstract: A powder magnetic core is provided for operating at high frequencies that is obtained by pressure forming an iron-based magnetic powder covered with an insulation film, which has a specific resistance more than 1000, preferably more than 2000, and most preferably more than 3000 ??m, and a saturation magnetic flux density B above 1.5, preferably above 1.7, and most preferably above 1.9 (T). A method for the preparation of such cores as well as a powder which is suitable for the preparation also are provided.Type: GrantFiled: December 6, 2007Date of Patent: November 8, 2011Assignee: Höganäs ABInventors: Zhou Ye, Björn Skårman
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Publication number: 20110129685Abstract: A process for the manufacture of soft magnetic composite components is provided comprising the steps of die compacting a powder composition comprising a mixture of soft magnetic, iron or iron-based powder, the core particles of which are surrounded by an electrically insulating, inorganic coating, and an organic lubricant in an amount of 0.05 to 1.5% by weight of the composition, the organic lubricant being free from metal and having a temperature of vaporisation less than the decomposition temperature of the coating; ejecting the compacted body from the die; heating the compacted body in a non-reducing atmosphere to a temperature above the vaporisation temperature of the lubricant and below the decomposition temperature of the inorganic coating for removing the lubricant from the compacted body, and subjecting the obtained body to heat treatment at a temperature between 300° and 600° in water vapour.Type: ApplicationFiled: December 4, 2007Publication date: June 2, 2011Applicant: HOGANAS ABInventors: Bjorn SKARMAN, Zhou YE, Patricia JANSSON