Patents by Inventor Hideyuki Minagi
Hideyuki Minagi 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: 20240047790Abstract: A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer (and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 ?m; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m2 or more and less than 10.8 g/m2.Type: ApplicationFiled: September 6, 2023Publication date: February 8, 2024Inventors: Kengo ASADA, Masao SUDA, Kota SADAKI, Hideyuki MINAGI
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Patent number: 11824212Abstract: A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer (and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 ?m; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m2 or more and less than 10.8 g/m2.Type: GrantFiled: October 27, 2021Date of Patent: November 21, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
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Publication number: 20220166092Abstract: A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer (and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 ?m; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m2 or more and less than 10.8 g/m2.Type: ApplicationFiled: October 27, 2021Publication date: May 26, 2022Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
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Patent number: 11196114Abstract: A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 ?m; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m2 or more and less than 10.8 g/m2.Type: GrantFiled: December 5, 2016Date of Patent: December 7, 2021Assignee: TOYO KOHAN CO., LTD.Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
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Publication number: 20180351138Abstract: A surface-treated steel sheet for a battery container, including a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer formed on the iron-nickel diffusion layer and constituting the outermost layer, wherein when the Fe intensity and the Ni intensity are continuously measured from the surface of the surface-treated steel sheet for a battery container along the depth direction with a high frequency glow discharge optical emission spectrometric analyzer, the thickness of the iron-nickel diffusion layer being the difference between the depth at which the Fe intensity exhibits a first predetermined value and the depth at which the Ni intensity exhibits a second predetermined value is 0.04 to 0.31 ?m; and the total amount of the nickel contained in the iron-nickel diffusion layer and the nickel contained in the nickel layer is 4.4 g/m2 or more and less than 10.8 g/m2.Type: ApplicationFiled: December 5, 2016Publication date: December 6, 2018Inventors: Kengo ASADA, Masao SUDA, Kota SADAKI, Hideyuki MINAGI
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Patent number: 9194530Abstract: A nickel-plated steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor; and a pipe and a fuel supply pipe. In the pipe and fuel supply pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on an inner surface of a pipe formed of a steel sheet thus having corrosion resistance against fuel vapor. In the fuel supply pipe formed of a steel sheet for supplying fuel to a fuel tank, the fuel supply pipe includes: a large-diameter pipe portion through which the fuel passes; and a small-diameter pipe portion which makes an upper portion of the large-diameter pipe portion and a lower portion of the large-diameter pipe portion communicate with each other for ventilation, and a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on an inner surface of at least the small-diameter pipe portion.Type: GrantFiled: September 15, 2010Date of Patent: November 24, 2015Assignee: TOYO KOHAN CO., LTD.Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
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Patent number: 9080692Abstract: Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m.Type: GrantFiled: September 16, 2010Date of Patent: July 14, 2015Assignee: TOYO KOHAN CO., LTD.Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
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Patent number: 8795846Abstract: Provided is a Ni-plated steel sheet having excellent press formability. An Fe—Ni diffusion layer and a softened Ni layer formed on the Fe—Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of a battery can, a semi-bright Ni plating layer is formed on the softened Ni layer, a Ni coating weight of the Fe—Ni diffusion layer and the softened Ni layer formed on the Fe—Ni diffusion layer is set smaller than a Ni coating weight of the semi-bright Ni plating layer, and average roughness Ra of the semi-bright Ni plating layer measured by a traceable roughness gauge is 1.0 ?m or more and 2.0 ?m or less, and a maximum height Ry of the semi-bright Ni plating layer measured by the traceable roughness gauge is 5 ?m or more and 20 ?m or less.Type: GrantFiled: August 24, 2010Date of Patent: August 5, 2014Assignee: Toyo Kohan Co., Ltd.Inventors: Hideyuki Minagi, Eiji Okamatsu
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Patent number: 8734961Abstract: A Ni-plated steel sheet is provided in which the occurrence of scratches at the time of forming a battery can is suppressed. Also provided is a method which includes a step where a surface of a steel sheet is plated with Ni in a Ni adhesion amount of 0.3-2 ?m, a step where the Ni-plated steel sheet is heated to 600-800° C. to form an Fe?Ni diffusion layer as an outermost surface layer, and a step where the steel sheet is rolled by temper rolling so as to adjust the Fe?Ni diffusion layer so that the steel sheet has the surface roughness Ra of 0.9-2.0 ?m and the surface roughness Ry of 4.0-15 ?m. A Ni-plated steel sheet which includes an Fe?Ni diffusion layer as an outermost surface layer and in which the diffusion layer has the surface roughness Ra of 0.9-2.0 ?m and the surface roughness Ry of 4.0-15 ?m and the diffusion layer has such an Fe/Ni ratio that the Fe accounts for 20-50% in Auger analysis is subjected to drawing using a water-soluble liquid which contains water-soluble emersion as a press lubricant.Type: GrantFiled: May 31, 2010Date of Patent: May 27, 2014Assignee: Toyo Kohan Co., Ltd.Inventors: Shinichi Takematsu, Eiji Okamatsu, Hideyuki Minagi
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Publication number: 20130209867Abstract: Provided is a Ni-plated steel sheet being excellent in press formability and suppression of wear of a mold and capable of maintaining alkali battery characteristic even after a lapse of time. In a Ni-plated steel sheet for a battery can having excellent press formability, an Fe—Ni diffusion layer and a Ni layer formed on the Fe—Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of the battery can, a semi-bright Ni plating layer is formed on the Ni layer, a Ni coating weight of the Fe—Ni diffusion layer and the Ni layer formed on the Fe—Ni diffusion layer is set equal to or smaller than a Ni coating weight of the semi-bright Ni plating layer, the Ni coating weight of the semi-bright Ni plating layer is 2.25 g/m2 or more, surface roughness Ra1 of a surface of the semi-bright Ni plating layer in an area of 2.5 ?m×2.Type: ApplicationFiled: December 28, 2010Publication date: August 15, 2013Applicant: Toyo Kohan Co., LtpInventors: Hideyuki Minagi, Eiji Okamatsu
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Publication number: 20120234428Abstract: Provided is a nickel-plated steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the nickel-plated steel sheet for manufacturing a pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on a surface of a steel sheet thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on an inner surface of a pipe formed of a steel sheet thus having corrosion resistance against fuel vapor.Type: ApplicationFiled: September 15, 2010Publication date: September 20, 2012Applicant: Toyo Kohan Co., Ltd.Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
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Publication number: 20120234426Abstract: Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m.Type: ApplicationFiled: September 16, 2010Publication date: September 20, 2012Applicant: Toyo Kohan Co., Ltd.Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
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Publication number: 20120219825Abstract: Provided is a Ni-plated steel sheet having excellent press formability. An Fe—Ni diffusion layer and a softened Ni layer formed on the Fe—Ni diffusion layer are formed on a surface of a steel sheet corresponding to an outer surface of a battery can, a semi-bright Ni plating layer is formed on the softened Ni layer, a Ni coating weight of the Fe—Ni diffusion layer and the softened Ni layer formed on the Fe—Ni diffusion layer is set smaller than a Ni coating weight of the semi-bright Ni plating layer, and average roughness Ra of the semi-bright Ni plating layer measured by a traceable roughness gauge is 1.0 ?m or more and 2.0 ?m or less, and a maximum height Ry of the semi-bright Ni plating layer measured by the traceable roughness gauge is 5 ?m or more and 20 ?m or less.Type: ApplicationFiled: August 24, 2010Publication date: August 30, 2012Inventors: Hideyuki Minagi, Eiji Okamatsu
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Publication number: 20120171518Abstract: A Ni-plated steel sheet is provided in which thee occurrence of scratches at the time of forming a battery can is suppressed. Also provided is a method which includes a step where a surface of a steel sheet is plated with Ni in a Ni adhesion amount of 0.3-2 ?m, a step where the Ni-plated steel sheet is heated to 600-800° C. to form an Fe?Ni diffusion layer as an outermost surface layer, and a step where the steel sheet is rolled by temper rolling so as to adjust the Fe?Ni diffusion layer so that the steel sheet has the surface roughness Ra of 0.9-2.0 ?m and the surface roughness Ry of 4.0-15 ?m. A Ni-plated steel sheet which includes an Fe?Ni diffusion layer as an outermost surface layer and in which the diffusion layer has the surface roughness Ra of 0.9-2.0 ?m and the surface roughness Ry of 4.Type: ApplicationFiled: May 31, 2010Publication date: July 5, 2012Inventors: Shinichi Takematsu, Eiji Okamatsu, Hideyuki Minagi
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Publication number: 20120034488Abstract: A surface-treated steel sheet having a Co layer, wherein oxidation of the surface is prevented without deteriorating characteristics such as electrical conductivity. A surface-treated steel sheet which is provided with a Co layer on the surface is immersed in an antirust agent, which contains a fatty acid amine and uses water as a solvent, and then dried, thereby forming an antirust coating film on the surface of the surface-treated steel sheet. The antirust coating film containing the fatty acid amine has a thickness of 10-500 ? (in terms of SiO2) as determined by XPS depth analysis. Preferably, the fatty acid amine is benzenemethanamine or trimethylamine, and more preferably, the fatty acid amine additionally contains benzotriazole.Type: ApplicationFiled: October 14, 2009Publication date: February 9, 2012Applicant: TOYO KOHAN CO., LTD.Inventors: Kazuhiko Ishihara, Tatsuo Tomomori, Eiji Yamane, Hideyuki Minagi