Patents by Inventor Kota Sadaki
Kota Sadaki 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: 11840045Abstract: This invention provides a relatively thick roll-bonded laminate that exhibits a high Erichsen value and excellent molding workability. Such roll-bonded laminate is composed of a stainless steel layer and a non-stainless steel metal layer, and it is characterized in that thickness T is 0.2 mm to 3 mm and a correlation between a proportion PSUS of thickness TSUS of the stainless steel layer relative to thickness T and a half width FWHM200 of a peak exhibiting a crystal plane orientation (200) determined by X-ray diffraction analysis of the stainless steel layer side satisfies the correlation represented by the formula: FWHM200?0.0057PSUS+0.4.Type: GrantFiled: March 29, 2018Date of Patent: December 12, 2023Assignee: Toyo Kohan Co., Ltd.Inventors: Yusuke Hashimoto, Kota Sadaki, Teppei Kurokawa, Takashi Koshiro, Takafumi Hatakeda
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Publication number: 20230387517Abstract: A surface-treated steel sheet for a battery container includes 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. 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 (D2?D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) 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 10.8 to 26.7 g/m2.Type: ApplicationFiled: August 15, 2023Publication date: November 30, 2023Inventors: Kota SADAKI, Koh YOSHIOKA
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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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Patent number: 11799156Abstract: A surface-treated steel sheet for a battery container includes 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. 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 (D2?D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) 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 10.8 to 26.7 g/m2.Type: GrantFiled: January 29, 2021Date of Patent: October 24, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kota Sadaki, Koh Yoshioka
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Patent number: 11699824Abstract: The present invention provides a nickel-plated heat-treated steel sheet for a battery can (1), having a nickel layer with a nickel amount of 4.4 to 26.7 g/m2 on a steel sheet (11), wherein when the Fe intensity and the Ni intensity are continuously measured along the depth direction from the surface of the nickel-plated heat-treated steel sheet for a battery can, by using a high frequency glow discharge optical emission spectrometric analyzer, the difference (D2-D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) at which the Ni intensity exhibits a second predetermined value is less than 0.04 ?m.Type: GrantFiled: September 11, 2020Date of Patent: July 11, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kota Sadaki, Koh Yoshioka
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Patent number: 11691386Abstract: This invention provides a roll-bonded laminate that is excellent in press workability and/or a roll-bonded laminate with improved performance and ease of handling at the time of production. More specifically, this invention relates to a roll-bonded laminate composed of a stainless steel layer and an aluminum alloy layer with the peel strength of 60 N/20 mm or higher, a roll-bonded laminate composed of a stainless steel layer and a pure aluminum layer with the peel strength of 160 N/20 mm or higher, and a roll-bonded laminate composed of a pure titanium or titanium alloy layer and an aluminum alloy layer with the peel strength of 40 N/20 mm or higher.Type: GrantFiled: March 1, 2022Date of Patent: July 4, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
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Patent number: 11637344Abstract: The present invention provides a nickel-plated heat-treated steel sheet for a battery can (1), having a nickel layer with a nickel amount of 4.4 to 26.7 g/m2 on a steel sheet (11), wherein when the Fe intensity and the Ni intensity are continuously measured along the depth direction from the surface of the nickel-plated heat-treated steel sheet for a battery can, by using a high frequency glow discharge optical emission spectrometric analyzer, the difference (D2-D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) at which the Ni intensity exhibits a second predetermined value is less than 0.04 ?m.Type: GrantFiled: September 11, 2020Date of Patent: April 25, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Kota Sadaki, Koh Yoshioka
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Patent number: 11590603Abstract: [Problem] To provide: a roll-bonded body which is able to be suppressed in waviness in the surface; and a method for producing this roll-bonded body. [Solution] A roll-bonded body according to the present invention is obtained by bonding a first metal layer and a second metal layer with each other by means of rolling, and is characterized in that the surface of the first metal layer has an arithmetic average waviness (Wa1) 0.01-0.96 and a maximum waviness height (Wz1) of 0.2-5.0 ?m.Type: GrantFiled: May 14, 2018Date of Patent: February 28, 2023Assignee: TOYO KOHAN CO., LTD.Inventors: Yusuke Hashimoto, Teppei Kurokawa, Takashi Koshiro, Kota Sadaki
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Patent number: 11453203Abstract: This invention provides a metal laminate that maintains functionality such as radiation performance and is excellent in dimensional accuracy after press work. Such metal laminate is a roll-bonded laminate composed of 2 or more metal layers, which exhibits a ratio ?/T of the standard deviation ? of thickness T1 of the outermost layer to thickness T of the roll-bonded laminate of 0% of 4.0%, the thickness T of 2 mm or less, and the deviation of the thickness T of 4.0% or less.Type: GrantFiled: February 7, 2018Date of Patent: September 27, 2022Inventors: Kota Sadaki, Teppei Kurokawa, Yusuke Hashimoto, Takafumi Hatakeda
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Publication number: 20220184923Abstract: This invention provides a roll-bonded laminate that is excellent in press workability and/or a roll-bonded laminate with improved performance and ease of handling at the time of production. More specifically, this invention relates to a roll-bonded laminate composed of a stainless steel layer and an aluminum alloy layer with the peel strength of 60 N/20 mm or higher, a roll-bonded laminate composed of a stainless steel layer and a pure aluminum layer with the peel strength of 160 N/20 mm or higher, and a roll-bonded laminate composed of a pure titanium or titanium alloy layer and an aluminum alloy layer with the peel strength of 40 N/20 mm or higher.Type: ApplicationFiled: March 1, 2022Publication date: June 16, 2022Applicant: Toyo Kohan Co., Ltd.Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
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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: 11305512Abstract: This invention provides a roll-bonded laminate that is excellent in press workability and/or a roll-bonded laminate with improved performance and ease of handling at the time of production. More specifically, this invention relates to a roll-bonded laminate composed of a stainless steel layer and an aluminum alloy layer with the peel strength of 60 N/20 mm or higher, a roll-bonded laminate composed of a stainless steel layer and a pure aluminum layer with the peel strength of 160 N/20 mm or higher, and a roll-bonded laminate composed of a pure titanium or titanium alloy layer and an aluminum alloy layer with the peel strength of 40 N/20 mm or higher.Type: GrantFiled: March 29, 2018Date of Patent: April 19, 2022Assignee: Toyo Kohan Co., Ltd.Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
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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: 20210151824Abstract: A surface-treated steel sheet for a battery container includes a steel sheet, an iron-nickel diffusion layer formed on the steel sheet, and a nickel layer foamed on the iron-nickel diffusion layer and constituting the outermost layer. 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 (D2?D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) 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 10.8 to 26.7 g/m2.Type: ApplicationFiled: January 29, 2021Publication date: May 20, 2021Inventors: Kota SADAKI, Koh YOSHIOKA
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Publication number: 20210114347Abstract: This invention provides a roll-bonded laminate for an electronic device that exhibits high rigidity and a high elastic modulus and is suitable for housing applications. More specifically, this invention concerns a roll-bonded laminate for an electronic device composed of a stainless steel layer and an aluminum alloy layer, wherein thickness TAl (mm) and surface hardness HAl (HV) of the aluminum alloy layer and thickness TSUS (mm) and surface hardness HSUS (HV) of the stainless steel layer satisfy the correlation represented by Formula (1): HSUSTSUS2?(34.96+0.03×(HAlTAl2)2?3.57×HAlTAl2)/(?0.008×(HAlTAl2)2+0.061×HAlTAl2+1.354). This invention also concerns an electronic device housing.Type: ApplicationFiled: March 29, 2018Publication date: April 22, 2021Applicant: TOYO KOHAN CO., LTD.Inventors: Kota SADAKI, Teppei KUROKAWA, Yusuke HASHIMOTO, Takafumi HATAKEDA, Takashi KOSHIRO
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Publication number: 20210107254Abstract: This invention provides a roll-bonded laminate that is excellent in press workability and/or a roll-bonded laminate with improved performance and ease of handling at the time of production. More specifically, this invention relates to a roll-bonded laminate composed of a stainless steel layer and an aluminum alloy layer with the peel strength of 60 N/20 mm or higher, a roll-bonded laminate composed of a stainless steel layer and a pure aluminum layer with the peel strength of 160 N/20 mm or higher, and a roll-bonded laminate composed of a pure titanium or titanium alloy layer and an aluminum alloy layer with the peel strength of 40 N/20 mm or higher.Type: ApplicationFiled: March 29, 2018Publication date: April 15, 2021Applicant: Toyo Kohan Co., Ltd.Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
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Publication number: 20210101364Abstract: This invention provides a relatively thick roll-bonded laminate that exhibits a high Erichsen value and excellent molding workability. Such roll-bonded laminate is composed of a stainless steel layer and a non-stainless steel metal layer, and it is characterized in that thickness T is 0.2 mm to 3 mm and a correlation between a proportion PSUS of thickness TSUS of the stainless steel layer relative to thickness T and a half width FWHM200 of a peak exhibiting a crystal plane orientation (200) determined by X-ray diffraction analysis of the stainless steel layer side satisfies the correlation represented by the formula: FWHM200?0.0057PSUS+0.4.Type: ApplicationFiled: March 29, 2018Publication date: April 8, 2021Applicant: TOYO KOHAN CO., LTDInventors: Yusuke HASHIMOTO, Kota SADAKI, Teppei KUROKAWA, Takashi KOSHIRO, Takafumi HATAKEDA
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Patent number: 10950828Abstract: 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 10.8 to 26.7 g/m2.Type: GrantFiled: December 5, 2016Date of Patent: March 16, 2021Assignee: Toyo Kohan Co., Ltd.Inventors: Kota Sadaki, Koh Yoshioka
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Publication number: 20210028415Abstract: The present invention provides a nickel-plated heat-treated steel sheet for a battery can (1), having a nickel layer with a nickel amount of 4.4 to 26.7 g/m2 on a steel sheet (11), wherein when the Fe intensity and the Ni intensity are continuously measured along the depth direction from the surface of the nickel-plated heat-treated steel sheet for a battery can, by using a high frequency glow discharge optical emission spectrometric analyzer, the difference (D2-D1) between the depth (D1) at which the Fe intensity exhibits a first predetermined value and the depth (D2) at which the Ni intensity exhibits a second predetermined value is less than 0.04 ?m.Type: ApplicationFiled: September 11, 2020Publication date: January 28, 2021Inventors: Kota SADAKI, Koh YOSHIOKA