Patents by Inventor Yoshiaki Tani

Yoshiaki Tani 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: 20210254235
    Abstract: A steel sheet for a container according to the present invention includes: a base steel sheet; a metal chromium layer; and a chromium-containing layer, in which the metal chromium layer is located on at least one surface of the base steel sheet, the chromium-containing layer is located on the metal chromium layer and contains a granular trivalent chromium compound, or contains a granular trivalent chromium compound and granular metal chromium, the metal chromium layer and the chromium-containing layer are separately disposed in two layers on the base steel sheet, in the chromium-containing layer, an average particle size of the trivalent chromium compound and the metal chromium is 10 nm or more and 100 nm or less, and an adhesion amount of the chromium-containing layer is 1.0 mg/m2 or more and 100 mg/m2 or less in terms of a Cr content.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 19, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yoshiaki TANI, Shigeru HIRANO
  • Patent number: 10851467
    Abstract: A steel sheet for containers including a steel sheet, a Sn coated layer that is formed on at least one surface of the steel sheet, and a chemical treatment layer that is formed on the Sn coated layer. A variation amount in a yellowness index measured at one measurement point on the outermost surface of the chemical treatment layer is defined as ?YI, and represented by ?YI=YI?YI0, wherein YI is the yellowness index measured after the steel sheet for containers is subjected to a retort treatment at a temperature of 130° C. for 5 hours, and YI0 is the yellowness index measured before the retort treatment. An average of absolute values of the ?YI obtained at a plurality of measurement points included in a unit area of the outermost surface is 5.0 or less.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: December 1, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Tachiki, Shigeru Hirano, Yoshiaki Tani, Hirokazu Yokoya, Morio Yanagihara
  • Publication number: 20200307159
    Abstract: A steel sheet for a container includes: a steel sheet; an Ni plated layer, which is arranged on at least one side of the steel sheet and is adhered in an amount of from 0.3 to 3 g/m2 per side in terms of metal Ni amount; and a chromate coated film or a Zr coated film which is arranged on the Ni plated layer, in which the Ni plated layer contains from 0.1 to 20% by mass of ZnO particles per side in terms of metal Zn amount.
    Type: Application
    Filed: May 24, 2017
    Publication date: October 1, 2020
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shigeru HIRANO, Yoshiaki TANI, Shintaro YAMANAKA, Hirokazu YOKOYA
  • Publication number: 20200123663
    Abstract: A chemical treatment steel sheet contains: a steel sheet; a plated layer containing Ni and formed on at least one surface of the steel sheet; a chemical treatment layer containing a Zr compound in which an amount of Zr contained therein is 1.0 to 150 mg/m2, a phosphate compound in which an amount of P contained therein is 1.0 to 100 mg/m2, and an Al compound in which an amount of Al contained therein is 0.10 to 30.0 mg/m2. The plated layer is a Ni-plated layer containing Ni in which an amount of Ni contained therein is 5.0 to 3000 mg/m2 or a composite plated layer containing Ni in which an amount of Ni contained therein is 2.0 to 200 mg/m2 and Sn in which an amount of Sn contained therein is 0.10 to 10.0 g/m2 and having an island-shaped Sn-plated layer formed on a Fe—Ni—Sn alloy layer.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 23, 2020
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki TANI, Shigeru HIRANO, Akira TACHIKI, Morio YANAGIHARA, Makoto KAWABATA, Hirokazu YOKOYA
  • Publication number: 20200123661
    Abstract: A chemical treatment steel sheet includes a steel sheet, an Fe—Sn alloy layer which is formed on at least one surface of the steel sheet, a Sn layer which is formed on the Fe—Sn alloy layer and contains Sn in which a total amount of Sn contained in the Fe—Sn alloy layer and the Sn layer is 0.10 to 30.0 g/m2, and a chemical treatment layer which is formed on the Sn layer and contains a Zr compound in which an amount of Zr contained therein is 1.0 to 150 mg/m2, a phosphate compound in an amount of P contained therein is 1.0 to 100 mg/m2 and an Al compound in an amount of Al contained therein is 0.10 to 30.0 mg/m2.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 23, 2020
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki TANI, Shigeru HIRANO, Akira TACHIKI, Morio YANAGIHARA, Makoto KAWABATA, Hirokazu YOKOYA
  • Patent number: 10577705
    Abstract: A steel sheet for a container includes: a steel sheet; a coated layer containing Ni provided as an upper layer of the steel sheet; and a chemical treatment layer as an upper layer of the coated layer, and containing a Zr compound in an amount of 3.0 to 30.0 mg/m2 in terms of Zr metal, and a Mg compound in an amount of 0.50 to 5.00 mg/m2 in terms of Mg metal, in which the coated layer is one of: a Ni coated layer which contains Ni in amount of 10 to 1000 mg/m2 in terms of Ni metal, and a composite coated layer which contains Ni in an amount of 5 to 150 mg/m2 in terms of Ni metal and Sn in an amount of 300 to 3000 mg/m2 in terms of Sn metal, and has an island-shaped Sn coated layer formed on an Fe—Ni—Sn alloy layer.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: March 3, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Tachiki, Shigeru Hirano, Yoshiaki Tani, Hirokazu Yokoya, Morio Yanagihara, Makoto Kawabata
  • Patent number: 10563311
    Abstract: A steel sheet for a container includes a steel sheet, a Sn coated layer which is provided as an upper layer of the steel sheet and contains Sn in an amount of 560 to 5600 mg/m2 in terms of Sn metal, and a chemical treatment layer which is provided as an upper layer of the Sn coated layer and contains a Zr compound in an amount of 3.0 to 30.0 mg/m2 in terms of Zr metal and a Mg compound in an amount of 0.50 to 5.00 mg/m2 in terms of Mg metal.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 18, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Tachiki, Shigeru Hirano, Yoshiaki Tani, Hirokazu Yokoya, Morio Yanagihara, Makoto Kawabata
  • Patent number: 10465309
    Abstract: This steel sheet for containers includes a steel sheet, a Ni coated layer that is formed on at least one surface of the steel sheet, and a chemical treatment layer that is formed on the Ni coated layer. The Ni coated layer contains 10 mg/m2 to 1,000 mg/m2 of Ni in terms of an amount of metal Ni, and the chemical treatment layer contains 5 mg/m2 to 30 mg/m2 of a Zr compound in terms of an amount of metal Zr. An average roughness Ra of an outermost surface of the chemical treatment layer obtained with a scanning probe microscope is 10 nm to 100 nm, and when a variation amount in a yellowness index measured at one measurement point on the outermost surface of the chemical treatment layer is defined as ?YI represented by Equation (2), an average of absolute values of the ?YI obtained at a plurality of the measurement points included in a unit area of the outermost surface is 5.0 or less.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 5, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Tachiki, Shigeru Hirano, Hirokazu Yokoya, Morio Yanagihara, Yoshiaki Tani
  • Patent number: 10443141
    Abstract: A steel sheet for containers includes a steel sheet, an underlying Ni layer formed by performing a Ni coating or a Fe—Ni alloy coating containing Ni in an amount of 5 mg/m2 to 150 mg/m2 in terms of an amount of metal Ni on at least one surface of the steel sheet, a Sn coated layer formed by performing a Sn coating containing Sn in an amount of 300 mg/m2 to 3,000 mg/m2 in terms of an amount of metal Sn on the underlying Ni layer and including an island-shaped Sn formed by alloying the Sn coating and at least a part of the underlying Ni layer by a reflow treatment, an oxide layer formed on the Sn coated layer and containing tin oxide, and a chemical treatment layer formed on the oxide layer and at least contains Zr in an amount of 1 mg/m2 to 500 mg/m2 in terms of an amount of metal Zr and phosphate acid in an amount of 0.1 mg/m2 to 100 mg/m2 in terms of an amount of P, in which the oxide layer contains tin oxide in such an amount that an amount of electricity required for reduction of the oxide layer is 0.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 15, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshiaki Tani, Shigeru Hirano, Akira Tachiki, Morio Yanagihara, Makoto Kawabata, Hirokazu Yokoya
  • Publication number: 20190226112
    Abstract: Provided is a chemical treatment steel sheet including a steel sheet; a composite coated layer which is formed on at least one surface of the steel sheet, and contains 2 to 200 mg/m2 of Ni in terms of an amount of metal Ni and 0.1 to 10 g/m2 of Sn in terms of an amount of metal Sn, and in which an island-shaped Sn coated layer is formed on an Fe—Ni—Sn alloy layer; and a chemical treatment layer that is formed on the composite coated layer, and contains a 0.01 to 0.1 mg/m2 of Zr compounds in terms of an amount of metal Zr and 0.01 to 5 mg/m2 of phosphate compounds in terms of an amount of P.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki TANI, Shigeru HIRANO, Akira TACHIKI, Morio YANAGIHARA, Makoto KAWABATA, Hirokazu YOKOYA
  • Patent number: 10301721
    Abstract: A chemical treatment steel sheet includes a steel sheet; a Fe—Sn alloy layer which is formed on at least one surface of the steel sheet; an Sn layer which is formed on the Fe—Sn alloy layer; and a chemical treatment layer that is formed on the Sn layer, and contains a 0.01 to 0.1 mg/m2 of Zr compounds in terms of an amount of metal Zr and 0.01 to 5 mg/m2 of phosphate compounds in terms of an amount of P. The total Sn content of the Fe—Sn alloy layer and the Sn layer is 0.1 to 15 g/m2 of Sn in terms of the amount of metal Sn.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 28, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki Tani, Shigeru Hirano, Akira Tachiki, Morio Yanagihara, Makoto Kawabata, Hirokazu Yokoya
  • Patent number: 10294577
    Abstract: Provided is a chemical treatment steel sheet including a steel sheet; a composite coated layer which is formed on at least one surface of the steel sheet, and contains 2 to 200 mg/m2 of Ni in terms of an amount of metal Ni and 0.1 to 10 g/m2 of Sn in terms of an amount of metal Sn, and in which an island-shaped Sn coated layer is formed on an Fe—Ni—Sn alloy layer; and a chemical treatment layer that is formed on the composite coated layer, and contains a 0.01 to 0.1 mg/m2 of Zr compounds in terms of an amount of metal Zr and 0.01 to 5 mg/m2 of phosphate compounds in terms of an amount of P.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 21, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki Tani, Shigeru Hirano, Akira Tachiki, Morio Yanagihara, Makoto Kawabata, Hirokazu Yokoya
  • Patent number: 10190231
    Abstract: A Ni-plated steel sheet according to the present invention includes a steel sheet, a first Ni-plated layer which is formed at least on a one-sided surface of the steel sheet and contains Ni, and a second Ni-plated layer which is formed on the first Ni-plated layer and contains Ni. An average central-line roughness Ra at an interface between the first Ni-plated layer and the second Ni-plated layer is less than 0.1 ?m, an average central-line roughness Ra of a surface of the second Ni-plated layer is 0.1 ?m to 100 ?m, and a coating amount of Ni in the entirety of the first Ni-plated layer and the second Ni-plated layer is 20 mg/m2 to 2500 mg/m2 per one-sided surface in terms of metal Ni.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 29, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki Tani, Shigeru Hirano, Akira Tachiki, Morio Yanagihara, Makoto Kawabata, Hirokazu Yokoya
  • Publication number: 20180282877
    Abstract: A steel sheet for a container includes a steel sheet, a Sn coated layer which is provided as an upper layer of the steel sheet and contains Sn in an amount of 560 to 5600 mg/m2 in terms of Sn metal, and a chemical treatment layer which is provided as an upper layer of the Sn coated layer and contains a Zr compound in an amount of 3.0 to 30.0 mg/m2 in terms of Zr metal and a Mg compound in an amount of 0.50 to 5.00 mg/m2 in terms of Mg metal.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 4, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Akira TACHIKI, Shigeru HIRANO, Yoshiaki TANI, Hirokazu YOKOYA, Morio YANAGIHARA, Makoto KAWABATA
  • Publication number: 20180187324
    Abstract: This steel sheet for containers includes a steel sheet, a Sn coated layer that is formed on at least one surface of the steel sheet, and a chemical treatment layer that is formed on the Sn coated layer. The Sn coated layer contains 300 mg/m2 to 5,600 mg/m2 of Sn in terms of an amount of metal Sn, and the chemical treatment layer contains 5 mg/m2 to 30 mg/m2 of a Zr compound in terms of an amount of metal Zr, an average roughness Ra of an outermost surface of the chemical treatment layer obtained with a scanning probe microscope is 10 nm to 100 nm. A variation amount in a yellowness index measured at one measurement point on the outermost surface of the chemical treatment layer is defined as ?YI represented by Equation (1), an average of absolute values of the ?YI obtained at a plurality of the measurement points included in a unit area of the outermost surface is 5.0 or less.
    Type: Application
    Filed: June 23, 2015
    Publication date: July 5, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Akira TACHIKI, Shigeru HIRANO, Yoshiaki TANI, Hirokazu YOKOYA, Morio YANAGIHARA
  • Publication number: 20180155845
    Abstract: This steel sheet for containers includes a steel sheet, a Ni coated layer that is formed on at least one surface of the steel sheet, and a chemical treatment layer that is formed on the Ni coated layer. The Ni coated layer contains 10 mg/m2 to 1,000 mg/m2 of Ni in terms of an amount of metal Ni, and the chemical treatment layer contains 5 mg/m2 to 30 mg/m2 of a Zr compound in terms of an amount of metal Zr. An average roughness Ra of an outermost surface of the chemical treatment layer obtained with a scanning probe microscope is 10 nm to 100 nm, and when a variation amount in a yellowness index measured at one measurement point on the outermost surface of the chemical treatment layer is defined as ?YI represented by Equation (2), an average of absolute values of the ?YI obtained at a plurality of the measurement points included in a unit area of the outermost surface is 5.0 or less.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 7, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Akira TACHIKI, Shigeru HIRANO, Hirokazu YOKOYA, Morio YANAGIHARA, Yoshiaki TANI
  • Patent number: 9945037
    Abstract: A steel sheet used to manufacture a container, wherein the steel sheet includes a chromate film layer or a film layer including Zr on the Ni plating layer, the Ni plating layer includes one or more of a hydroxyl Ni and a Ni oxide, an adhesion amount of the Ni plating layer in terms of an amount of Ni is 0.3 g/m2 or more, a concentration of oxygen atoms of the Ni plating layer due to the hydroxyl Ni and the Ni oxide is 1 to 10 atomic %, an adhesion amount of the chromate film layer in terms of the amount of Cr is 1 to 40 mg/m2, and an adhesion amount of the film layer including Zr in terms of an amount of Zr is 1 to 40 mg/m2 or more.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 17, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shigeru Hirano, Yoshiaki Tani
  • Publication number: 20180087172
    Abstract: A steel sheet for a container includes: a steel sheet; a coated layer which contains Ni and is provided as an upper layer of the steel sheet; and a chemical treatment layer which is provided as an upper layer of the coated layer, and contains a Zr compound in an amount of 3.0 to 30.0 mg/m2 in terms of Zr metal, and a Mg compound in an amount of 0.50 to 5.00 mg/m2 in terms of Mg metal, in which the coated layer is one of the group consisting of a Ni coated layer which contains Ni in amount of 10 to 1000 mg/m2 in terms of Ni metal, and a composite coated layer which contains Ni in an amount of 5 to 150 mg/m2 in terms of Ni metal and Sn in an amount of 300 to 3000 mg/m2 in terms of Sn metal, and has an island-shaped Sn coated layer formed on an Fe—Ni—Sn alloy layer.
    Type: Application
    Filed: April 15, 2016
    Publication date: March 29, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Akira TACHIKI, Shigeru HIRANO, Yoshiaki TANI, Hirokazu YOKOYA, Morio YANAGIHARA, Makoto KAWABATA
  • Patent number: 9914584
    Abstract: A three-piece resealable can for acidic liquid includes, a cylindrical can body member that includes a screw portion at one end; and a can bottom member that contacts the can body member so as to close an opening portion of the other end of the can body member. The can body member includes a cylindrical first steel sheet, Ni plating that is formed on an inner circumferential surface of the first steel sheet, a polyester film that is formed so as to be disposed on the outermost surface of the inner circumference of the can body member, and a Zr-containing film that is formed between the first steel sheet and the polyester film. The can bottom member includes a second steel sheet, and Sn plating that is formed on the can body member side of the can bottom member. The Zr-containing film contains Zr compounds.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: March 13, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shigeru Hirano, Yoshiaki Tani, Hirokazu Yokoya
  • Publication number: 20170253984
    Abstract: Provided is a chemical treatment steel sheet including a steel sheet; a composite coated layer which is formed on at least one surface of the steel sheet, and contains 2 to 200 mg/m2 of Ni in terms of an amount of metal Ni and 0.1 to 10 g/m2 of Sn in terms of an amount of metal Sn, and in which an island-shaped Sn coated layer is formed on an Fe—Ni—Sn alloy layer; and a chemical treatment layer that is formed on the composite coated layer, and contains a 0.01 to 0.1 mg/m2 of Zr compounds in terms of an amount of metal Zr and 0.01 to 5 mg/m2 of phosphate compounds in terms of an amount of P.
    Type: Application
    Filed: October 8, 2015
    Publication date: September 7, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yoshiaki TANI, Shigeru HIRANO, Akira TACHIKI, Morio YANAGIHARA, Makoto KAWABATA, Hirokazu YOKOYA