Patents by Inventor Shigeki Sekiya
Shigeki Sekiya 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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Publication number: 20230343480Abstract: An aluminum wire rod has a composition which contains 3.00% by mass or less of Fe and 0.20% by mass or less of Si, and additionally contains a total of from 0.010% by mass to 0.500% by mass of one or more elements selected from the group consisting of Cu, Mn, Mg, Zn, Ti, B, V and Ni, with the balance being made up of Al and unavoidable impurities. With respect to this aluminum wire rod, in a 25 µm × 60 µm region in a cross-section that is perpendicular to the longitudinal direction, the total length of the portions where the crystal misorientation with respect to an adjacent crystal grain is more than 1° but not more than 15° is from 0.6 mm to 4.8 mm; and the electrical conductivity is 55% IACS or more.Type: ApplicationFiled: August 6, 2021Publication date: October 26, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Shigeki SEKIYA, Sho YOSHIDA
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Patent number: 10626483Abstract: A copper alloy wire rod has a chemical composition comprising Ag: 0.1 to 6.0 mass % and P: 0 to 20 mass ppm, the balance being copper with inevitable impurities. In a cross section parallel to a longitudinal direction of the wire rod, a number density of second phase particles each having an aspect ratio of greater than or equal to 1.5 and a size in a direction perpendicular to the longitudinal direction of the wire rod of less than or equal to 200 nm is greater than or equal to 1.4 particles/?m2.Type: GrantFiled: July 26, 2018Date of Patent: April 21, 2020Assignee: Furukawa Electric Co., Ltd.Inventors: Shigeki Sekiya, Hidemichi Fujiwara, Kengo Mitose
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Patent number: 10586626Abstract: A copper alloy wire rod having an alloy composition containing 0.5 to 6.0% by mass of Ag, 0 to 1.0% by mass of Mg, 0 to 1.0% by mass of Cr, and 0 to 1.0% by mass of Zr, with the balance being Cu and inevitable impurities, wherein an average closest particle distance of second phase particles having a particle size of 200 nm or less is 580 nm or less in a cross section perpendicular to a longitudinal direction of the wire rod.Type: GrantFiled: December 28, 2018Date of Patent: March 10, 2020Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Shigeki Sekiya, Kengo Mitose
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Patent number: 10553327Abstract: An aluminum alloy conductor wire has a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.20 mass %, Fe: 0.01-1.40 mass %, Zr: 0.01-0.50 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, where Ti, B, Cu, Ag, Au, Mn, Cr, Hf, V, Sc, Co and Ni are arbitrary additive components of which at least one component may be contained or none of the components may be contained. A density of a compound having a particle size of 0.5-5.0 ?m and containing Fe is 1 to 300 particles/10000 ?m2. Mg/Si ratio, which is a ratio of Mg in mass % to Si in mass %, is greater than 1.Type: GrantFiled: December 19, 2017Date of Patent: February 4, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Ryosuke Matsuo, Shigeki Sekiya, Kengo Mitose
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Patent number: 10418142Abstract: The present disclosure provides an aluminum alloy wire or the like which can secure a high conductivity and a moderately low yield strength, and realize both a high elongation and a moderate tensile strength. An aluminum alloy wire of the present disclosure contains 0.10 to 1.00% by mass of Mg, 0.10 to 1.20% by mass of Si, 0.10 to 1.40% by mass of Fe, 0 to 0.10% by mass of Ti, 0 to 0.030% by mass of B, 0 to 1.00% by mass of Cu, 0 to 1.00% by mass of Mn, 0 to 1.00% by mass of Cr, 0 to 0.50% by mass of Zr, and 0 to 0.50% by mass of Ni, the balance being Al and 0.30% by mass or less of impurities. Coarse crystal grains are present in a vertical cross-sectional structure of the wire taken in a lengthwise direction of the wire. The greatest grain size of the coarse crystal grains as measured in the lengthwise direction of the wire is equal to or greater than a diameter of the wire.Type: GrantFiled: December 31, 2018Date of Patent: September 17, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Kengo Mitose, Shigeki Sekiya
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Publication number: 20190139668Abstract: The present disclosure provides an aluminum alloy wire or the like which can secure a high conductivity and a moderately low yield strength, and realize both a high elongation and a moderate tensile strength. An aluminum alloy wire of the present disclosure contains 0.10 to 1.00% by mass of Mg, 0.10 to 1.20% by mass of Si, 0.10 to 1.40% by mass of Fe, 0 to 0.10% by mass of Ti, 0 to 0.030% by mass of B, 0 to 1.00% by mass of Cu, 0 to 1.00% by mass of Mn, 0 to 1.00% by mass of Cr, 0 to 0.50% by mass of Zr, and 0 to 0.50% by mass of Ni, the balance being Al and 0.30% by mass or less of impurities. Coarse crystal grains are present in a vertical cross-sectional structure of the wire taken in a lengthwise direction of the wire. The greatest grain size of the coarse crystal grains as measured in the lengthwise direction of the wire is equal to or greater than a diameter of the wire.Type: ApplicationFiled: December 31, 2018Publication date: May 9, 2019Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho YOSHIDA, Kengo MITOSE, Shigeki SEKIYA
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Publication number: 20190139669Abstract: A copper alloy wire rod having an alloy composition containing 0.5 to 6.0% by mass of Ag, 0 to 1.0% by mass of Mg, 0 to 1.0% by mass of Cr, and 0 to 1.0% by mass of Zr, with the balance being Cu and inevitable impurities, wherein an average closest particle distance of second phase particles having a particle size of 200 nm or less is 580 nm or less in a cross section perpendicular to a longitudinal direction of the wire rod.Type: ApplicationFiled: December 28, 2018Publication date: May 9, 2019Applicant: Furukawa Electric Co., Ltd.Inventors: Shigeki Sekiya, Kengo Mitose
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Patent number: 10242762Abstract: A copper alloy wire rod containing Ag: 0.5 wt % or more and 6 wt % or less and the balance including inevitable impurities and Cu, in which, on a cross section parallel to a longitudinal direction of the copper alloy wire rod, within a range observed with a visual field of 1.7 ?m in a direction perpendicular to the longitudinal direction and 2.3 ?m in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular range that is a rectangular range having a width perpendicular to the longitudinal direction of 0.2 ?m and a length parallel to the longitudinal direction of 2.3 ?m and entirely includes five or more second phase particles containing Ag and having a maximum length in the longitudinal direction of less than 300 nm.Type: GrantFiled: July 11, 2018Date of Patent: March 26, 2019Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Shigeki Sekiya, Kengo Mitose
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Publication number: 20180371580Abstract: A copper alloy wire rod has a chemical composition comprising Ag: 0.1 to 6.0 mass % and P: 0 to 20 mass ppm, the balance being copper with inevitable impurities. In a cross section parallel to a longitudinal direction of the wire rod, a number density of second phase particles each having an aspect ratio of greater than or equal to 1.5 and a size in a direction perpendicular to the longitudinal direction of the wire rod of less than or equal to 200 nm is greater than or equal to 1.4 particles/?m2.Type: ApplicationFiled: July 26, 2018Publication date: December 27, 2018Applicant: Furukawa Electric Co., Ltd.Inventors: Shigeki Sekiya, Hidemichi Fujiwara, Kengo Mitose
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Publication number: 20180322979Abstract: A copper alloy wire rod containing Ag: 0.5 wt % or more and 6 wt % or less and the balance including inevitable impurities and Cu, in which, on a cross section parallel to a longitudinal direction of the copper alloy wire rod, within a range observed with a visual field of 1.7 ?m in a direction perpendicular to the longitudinal direction and 2.3 ?m in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular range that is a rectangular range having a width perpendicular to the longitudinal direction of 0.2 ?m and a length parallel to the longitudinal direction of 2.3 ?m and entirely includes five or more second phase particles containing Ag and having a maximum length in the longitudinal direction of less than 300 nm.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Shigeki SEKIYA, Kengo MITOSE
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Patent number: 10096394Abstract: An aluminum alloy wire rod having a composition including Mg: 0.10-1.00 mass %, Si: 0.10-1.00 mass %, Fe: 0.01-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Sn: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, wherein a ratio of (standard deviation of crystal grain size of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is less than or equal to 0.57, and a ratio of (diameter of the aluminum alloy wire rod)/(average crystal grain size of the aluminum alloy wire rod) is greater than or equal to 10.Type: GrantFiled: May 17, 2017Date of Patent: October 9, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Shigeki Sekiya, Sho Yoshida, Kengo Mitose
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Patent number: 10090079Abstract: A covered wire includes a wire including a metal, a covering layer provided at a periphery of the wire, and inclusions including at least one of a metal and a metal oxide. The inclusions are provided between the wire and the covering layer or in the covering layer, and an average size of each of the inclusions is less than a thickness of the covering layer.Type: GrantFiled: April 21, 2017Date of Patent: October 2, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.Inventors: Sho Yoshida, Kengo Mitose, Shigeki Sekiya
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Patent number: 9994945Abstract: An aluminum alloy wire rod includes Mg: 0.1-1.0 mass %, Si: 0.1-1.2 mass %, Fe: 0.10-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities. In a cross section parallel to a wire rod lengthwise direction and including a center line of the wire rod, no void having an area greater than 20 ?m2 is present, or even in a case where at least one void having an area greater than 20 ?m2 is present, a presence ratio of the at least one void per 1000 ?m2 is on average in a range of less than or equal to one void/1000 ?m2.Type: GrantFiled: May 19, 2017Date of Patent: June 12, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Shigeki Sekiya, Kengo Mitose
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Patent number: 9997276Abstract: An aluminum alloy wire rod having a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.2 mass %, Fe: 0.10-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, wherein a number of compound particles present on a surface and having a diameter of greater than or equal to 1 ?m in terms of equivalent circle diameter is less than or equal to one per 100 ?m2, and a tensile strength is greater than or equal to 200 MPa.Type: GrantFiled: May 17, 2017Date of Patent: June 12, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Shigeki Sekiya, Kengo Mitose
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Patent number: 9991024Abstract: An aluminum alloy wire rod comprising 0.1-1.0 mass % Mg; 0.1-1.0 mass % Si; 0.01-1.40 mass % Fe; 0.01-0.50 mass % Zr; 0.000-0.100 mass % Ti; 0.000-0.030 mass % B; 0.00-1.00 mass % Cu; 0.00-0.50 mass % Ag; 0.00-0.50 mass % Au; 0.00-1.00 mass % Mn; 0.00-1.00 mass % Cr; 0.00-0.50 mass % Hf; 0.00-0.50 mass % V; 0.00-0.50 mass % Sc; 0.00-0.50 mass % Co; and 0.00-0.50 mass % Ni, a Mg/Si ratio being greater than 1, wherein a dispersion density of an Mg2Si compound having a particle size of 0.5 ?m to 5.0 ?m is less than or equal to 3.0×10?3 particles/?m2, and in the sectional structure, a concentration of each of Mg and Si other than a compound is less than or equal to 2.00 mass %.Type: GrantFiled: April 10, 2017Date of Patent: June 5, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Shigeki Sekiya, Sho Yoshida, Kyota Susai, Kengo Mitose
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Publication number: 20180122528Abstract: An aluminum alloy conductor wire has a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.20 mass %, Fe: 0.01-1.40 mass %, Zr: 0.01-0.50 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: AL and inevitable impurities, where Ti, B, Cu, Ag, Au, Mn, Cr, Hf, V, Sc, Co and Ni are arbitrary additive components of which at least one component may be contained or none of the components may be contained. A density of a compound having a particle size of 0.5-5.0 ?m and containing Fe is 1 to 300 particles/10000 ?m2. Mg/Si ratio, which is a ratio of Mg in mass % to Si in mass %, is greater than 1.Type: ApplicationFiled: December 19, 2017Publication date: May 3, 2018Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho YOSHIDA, Ryosuke MATSUO, Shigeki SEKIYA, Kengo MITOSE
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Patent number: 9899118Abstract: An aluminum alloy wire rod has a composition including Mg: 0.10-1.0 mass %, Si: 0.10-1.20 mass %, Fe: 0.01-1.40 mass %, Ti: 0.000-0.100 mass %, B: 0.000-0.030 mass %, Cu: 0.00-1.00 mass %, Ag: 0.00-0.50 mass %, Au: 0.00-0.50 mass %, Mn: 0.00-1.00 mass %, Cr: 0.00-1.00 mass %, Zr: 0.00-0.50 mass %, Hf: 0.00-0.50 mass %, V: 0.00-0.50 mass %, Sc: 0.00-0.50 mass %, Co: 0.00-0.50 mass %, Ni: 0.00-0.50 mass %, and the balance: Al and incidental impurities, Mg/Si mass ratio being 0.4 to 0.8. The aluminum alloy wire rod has a tensile strength of greater than or equal to 200 MPa, an elongation of greater than or equal to 13%, a conductivity of 47% IACS, and a ratio (YS/TS) of 0.2% yield strength (YS) to the tensile strength (TS) of less than or equal to 0.7.Type: GrantFiled: August 23, 2016Date of Patent: February 20, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Shigeki Sekiya, Kengo Mitose
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Patent number: 9899119Abstract: An electric wire apparatus includes an electric wire including an aluminum alloy wire rod having an outer periphery portion coated, and a crimp terminal crimped to an end portion of the electric wire, the crimp terminal having a barrel portion crimped with the aluminum alloy wire rod, the barrel portion having a one-end closed tubular shape. The aluminum alloy wire rod has a composition including 0.10 mass % to 1.00 mass % of magnesium (Mg), 0.10 mass % to 1.00 mass % of silicon (Si), 0.01 mass % to 2.50 mass % of iron (Fe), 0.000 mass % to 0.100 mass % of titanium (Ti), 0.000 mass % to 0.030 mass % of boron (B), 0.00 mass % to 1.00 mass % of copper (Cu), 0.00 mass % to 0.50 mass % of silver (Ag), 0.00 mass % to 0.50 mass % of gold (Au), 0.00 mass % to 1.00 mass % of manganese (Mn), 0.00 mass % to 1.00 mass % of chromium (Cr), 0.00 mass % to 0.50 mass % of zirconium (Zr), 0.00 mass % to 0.50 mass % of hafnium (Hf), 0.00 mass % to 0.50 mass % of vanadium (V), 0.00 mass % to 0.50 mass % of scandium (Sc), 0.Type: GrantFiled: March 20, 2017Date of Patent: February 20, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Akira Tachibana, Yasushi Kihara, Shigeki Sekiya, Kengo Mitose
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Patent number: 9875822Abstract: An aluminum alloy conductor wire has a composition comprising Mg: 0.1-1.0 mass %, Si: 0.1-1.20 mass %, Fe: 0.01-1.40 mass %, Ti: 0-0.100 mass %, B: 0-0.030 mass %, Cu: 0-1.00 mass %, Ag: 0-0.50 mass %, Au: 0-0.50 mass %, Mn: 0-1.00 mass %, Cr: 0-1.00 mass %, Zr: 0-0.50 mass %, Hf: 0-0.50 mass %, V: 0-0.50 mass %, Sc: 0-0.50 mass %, Co: 0-0.50 mass %, Ni: 0-0.50 mass %, and the balance: Al and inevitable impurities, where Ti, B, Cu, Ag, Au, Mn, Cr, Zr, Hf, V, Sc, Co and Ni are arbitrary additive components of which at least one component may be contained or none of the components may be contained. A density of a compound having a particle size of 0.5-5.0 ?m and containing Fe is 1 to 300 particles/10000 ?m2.Type: GrantFiled: November 16, 2016Date of Patent: January 23, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Ryosuke Matsuo, Shigeki Sekiya, Kengo Mitose
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Patent number: 9870841Abstract: An aluminum alloy wire rod has a composition including 0.1-1.0 mass % Mg; 0.1-1.0 mass % Si; 0.01-1.40 mass % Fe; 0.000-0.100 mass % Ti; 0.000-0.030 mass % B; 0.00-1.00 mass % Cu; 0.00-0.50 mass % Ag; 0.00-0.50 mass % Au; 0.00-1.00 mass % Mn; 0.00-1.00 mass % Cr; 0.00-0.50 mass % Zr; 0.00-0.50 mass % Hf; 0.00-0.50 mass % V; 0.00-0.50 mass % Sc; 0.00-0.50 mass % Sn; 0.00-0.50 mass % Co; 0.00-0.50 mass % Ni; and the balance being Al and inevitable impurities, and an area fraction of a region in which an angle formed by a longitudinal direction of the aluminum alloy wire rod and a <111> direction of a crystal is within 20° is greater than or equal to 20% and less than or equal to 65%.Type: GrantFiled: March 21, 2017Date of Patent: January 16, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Sho Yoshida, Shigeki Sekiya, Kengo Mitose