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).

  • Publication number: 20240047790
    Abstract: 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: Application
    Filed: September 6, 2023
    Publication date: February 8, 2024
    Inventors: Kengo ASADA, Masao SUDA, Kota SADAKI, Hideyuki MINAGI
  • Patent number: 11840045
    Abstract: 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: Grant
    Filed: March 29, 2018
    Date of Patent: December 12, 2023
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Yusuke Hashimoto, Kota Sadaki, Teppei Kurokawa, Takashi Koshiro, Takafumi Hatakeda
  • Publication number: 20230387517
    Abstract: 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: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Inventors: Kota SADAKI, Koh YOSHIOKA
  • Patent number: 11824212
    Abstract: 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: Grant
    Filed: October 27, 2021
    Date of Patent: November 21, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
  • Patent number: 11799156
    Abstract: 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: Grant
    Filed: January 29, 2021
    Date of Patent: October 24, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kota Sadaki, Koh Yoshioka
  • Patent number: 11699824
    Abstract: 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: Grant
    Filed: September 11, 2020
    Date of Patent: July 11, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kota Sadaki, Koh Yoshioka
  • Patent number: 11691386
    Abstract: 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: Grant
    Filed: March 1, 2022
    Date of Patent: July 4, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
  • Patent number: 11637344
    Abstract: 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: Grant
    Filed: September 11, 2020
    Date of Patent: April 25, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kota Sadaki, Koh Yoshioka
  • Patent number: 11590603
    Abstract: [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: Grant
    Filed: May 14, 2018
    Date of Patent: February 28, 2023
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Yusuke Hashimoto, Teppei Kurokawa, Takashi Koshiro, Kota Sadaki
  • Patent number: 11453203
    Abstract: 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: Grant
    Filed: February 7, 2018
    Date of Patent: September 27, 2022
    Inventors: Kota Sadaki, Teppei Kurokawa, Yusuke Hashimoto, Takafumi Hatakeda
  • Publication number: 20220184923
    Abstract: 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: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
  • Publication number: 20220166092
    Abstract: 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: Application
    Filed: October 27, 2021
    Publication date: May 26, 2022
    Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
  • Patent number: 11305512
    Abstract: 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: Grant
    Filed: March 29, 2018
    Date of Patent: April 19, 2022
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
  • Patent number: 11196114
    Abstract: 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: Grant
    Filed: December 5, 2016
    Date of Patent: December 7, 2021
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Kengo Asada, Masao Suda, Kota Sadaki, Hideyuki Minagi
  • Publication number: 20210151824
    Abstract: 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: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Inventors: Kota SADAKI, Koh YOSHIOKA
  • Publication number: 20210114347
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: April 22, 2021
    Applicant: TOYO KOHAN CO., LTD.
    Inventors: Kota SADAKI, Teppei KUROKAWA, Yusuke HASHIMOTO, Takafumi HATAKEDA, Takashi KOSHIRO
  • Publication number: 20210107254
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: April 15, 2021
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Kota Sadaki, Takashi Koshiro, Takafumi Hatakeda
  • Publication number: 20210101364
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: April 8, 2021
    Applicant: TOYO KOHAN CO., LTD
    Inventors: Yusuke HASHIMOTO, Kota SADAKI, Teppei KUROKAWA, Takashi KOSHIRO, Takafumi HATAKEDA
  • Patent number: 10950828
    Abstract: 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: Grant
    Filed: December 5, 2016
    Date of Patent: March 16, 2021
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Kota Sadaki, Koh Yoshioka
  • Publication number: 20210028415
    Abstract: 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: Application
    Filed: September 11, 2020
    Publication date: January 28, 2021
    Inventors: Kota SADAKI, Koh YOSHIOKA