Patents by Inventor Hiroyuki Masuoka

Hiroyuki Masuoka 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: 20220336763
    Abstract: A laminate which allows to obtain an organic thin-film solar cell having excellent output characteristics and transparency is provided. The laminate as above has a titanium oxide layer that is disposed on the member serving as a light-transmissive electrode layer and serves as an electron transport layer. The titanium oxide layer has a thickness of not less than 1.0 nm and not more than 200.0 nm. The titanium oxide layer contains indium oxide and metallic indium, InOx/Ti is not less than 0.50 and not more than 20.00 in atomic ratio, and InM/Ti is less than 0.100 in atomic ratio, where an elemental titanium content is represented by Ti, an indium oxide content is represented by InOx, and a metallic indium content is represented by InM.
    Type: Application
    Filed: September 28, 2020
    Publication date: October 20, 2022
    Applicants: JFE Steel Corporation, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Mikito Suto, Hiroyuki Masuoka, Akira Matsuzaki, Hiroki Habazaki, Hikaru Kobayashi
  • Patent number: 11473180
    Abstract: Provided are a high-yield-ratio high-strength galvanized steel sheet and a method for manufacturing thereof. The high-yield-ratio high-strength galvanized steel sheet has a steel sheet having a specified chemical composition and a metallographic structure including, in terms of area ratio, in terms of area ratio, 15% or less of ferrite, 20% or more and 50% or less of martensite, and bainite and tempered martensite in a total amount of 30% or more, and a galvanized layer formed on the steel sheet having a coating weight of 20 g/m2 to 120 g/m2 per side, in which a yield strength ratio is 65% or more, a tensile strength is 950 MPa or more, and Mn oxides are contained in the galvanized layer in an amount of 0.015 g/m2 to 0.050 g/m2.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 18, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiromi Yoshitomi, Hiroyuki Masuoka, Seisuke Tsuda, Yasuhiro Nishimura, Masaki Koba
  • Publication number: 20220173391
    Abstract: A precursor of a positive electrode material with which it is possible to obtain a lithium-ion secondary cell having an excellent discharge capacity and cycle characteristics, and a method for manufacturing the precursor. The precursor is a precursor of a positive electrode material used for a lithium-ion secondary cell, wherein the precursor is at least one substance selected from the group made of nickel-manganese composite hydroxides and nickel-manganese composite oxides, the precursor contains nickel and manganese, the ratio of the nickel content relative to the nickel content and the manganese content is 0.45-0.60 inclusive in molar ratio, and the average valence of manganese is below 4.0.
    Type: Application
    Filed: April 7, 2020
    Publication date: June 2, 2022
    Applicants: JFE MINERAL COMPANY, LTD., JFE STEEL CORPORATION
    Inventors: Rintaro NAGANO, Yoshiaki HAMANO, Koki TOKUMASU, Mika EMA, Mikito SUTO, Akira MATSUZAKI, Hiroyuki MASUOKA
  • Publication number: 20220140336
    Abstract: A positive electrode active material for a lithium-ion secondary cell having exceptional lithium ion conductivity, the positive electrode active material being such that the absorption of moisture from the atmosphere can be suppressed. This positive electrode active material for a lithium-ion secondary cell has powder particles that include a specific composite oxide, and an organic silicon compound affixed to the surface of the powder particles, the organic functional groups of the organic silicon compound including at least one selected from the group made of C2-10 alkyl groups and C6-14 aryl groups.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 5, 2022
    Applicants: JFE STEEL CORPORATION, JFE MINERAL COMPANY, LTD.
    Inventors: Mikito SUTO, Hiroyuki MASUOKA, Akira MATSUZAKI, Rintaro NAGANO
  • Patent number: 11248277
    Abstract: A method for manufacturing a high-strength galvanized steel sheet having excellent strength-elongation balance, coating adhesiveness, and surface appearance. The method includes: (i) a first heating process of heating a steel sheet having a predetermined chemical composition, (ii) a first pickling process of pickling the steel sheet which was subjected to the first heating process in an oxidizing acidic aqueous solution, (iii) a second pickling process of pickling the steel sheet which was subjected to the first pickling process in a non-oxidizing acidic aqueous solution, (iv) a second heating process of holding the steel sheet, which was subjected to the second pickling process, at a temperature range of 700° C. or higher and 900° C. or lower in a hydrogen-containing atmosphere for 20 seconds or more and 300 seconds or less, and (v) performing a galvanizing treatment on the steel sheet which was subjected to the second heating process.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: February 15, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Shotaro Terashima, Yusuke Fushiwaki, Yoichi Makimizu, Hiroyuki Masuoka, Hiroshi Hasegawa
  • Publication number: 20220029115
    Abstract: Provided is a laminate with which an organic thin-film solar cell having excellent output characteristics, even in an LED light irradiation environment, can be obtained. A titanium oxide layer that serves as an electron transport layer and is positioned on a member that serves as an optically transparent electrode layer has a thickness of 1.0 nm to 60.0 nm, inclusive, and satisfies condition 1 or condition 2. Condition 1: The titanium oxide layer contains an indium metal and an indium oxide, wherein, if the content of elemental titanium is denoted as Ti, the content of the indium metal is denoted as InM, and the content of the indium oxide is denoted as InOx, the atomic ratio (InM/Ti) is 0.10 to 0.25, inclusive, and the atomic ratio (InOx/Ti) is 0.50 to 10.00, inclusive.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 27, 2022
    Applicant: JFE Steel Corporation
    Inventors: Mikito Suto, Hiroyuki Masuoka, Akira Matsuzaki
  • Publication number: 20220029117
    Abstract: Provided is a novel method for producing a laminate that serves as an electron transport layer and an optically transparent electrode layer of a perovskite solar cell having, in the following order, an optically transparent electrode layer, an electron transport layer, a perovskite crystal layer, a hole transport layer, and a current collecting layer. The method involves forming a titanium oxide layer that serves as the electron transport layer on a member that serves as the optically transparent electrode layer by utilizing said member for cathode polarization in a treatment liquid containing a Ti component.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 27, 2022
    Applicant: JFE Steel Corporation
    Inventors: Mikito Suto, Hiroyuki Masuoka, Akira Matsuzaki
  • Publication number: 20210407738
    Abstract: The present invention provides a novel method for producing a laminate to be used as a light-transmissive electrode layer and an N-type semiconductor layer of a wet or solid-state dye-sensitized solar cell comprising a light-transmissive electrode layer, an N-type semiconductor layer, a P-type semiconductor layer, and a facing electrode in this order. In said method, a member to be used as the light-transmissive electrode layer is cathode-polarized in a treatment solution containing a Ti component so as to form a titanium oxide layer to be used as the N-type semiconductor layer on said member.
    Type: Application
    Filed: December 9, 2019
    Publication date: December 30, 2021
    Applicant: JFE Steel Corporation
    Inventors: Mikito SUTO, Hiroyuki MASUOKA, Akira MATSUZAKI
  • Patent number: 11085099
    Abstract: A high-strength cold-rolled steel sheet has a composition that contains, in terms of mass %, C: 0.10% or more and 0.50% or less, Si: 1.0% or more and 3.0% or less, Mn: 1.0% or more and 2.5% or less, P: 0.05% or less, S: 0.02% or less, Al: 0.01% or more and 1.5% or less, N: 0.005% or less, Cu: 0.05% or more and 0.50% or less, and the balance being Fe and unavoidable impurities, wherein a proportion of a steel sheet surface covered with oxides mainly composed of Si is 1% or less, a proportion of the steel sheet surface covered with Fe oxides is 40% or less, CuS/CuB is 4.0 or less, and a tensile strength is 1180 MPa or more, when CuS denotes the Cu content in a steel sheet surface layer and CuB denotes the Cu content in a base material.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 10, 2021
    Assignee: JFE Steel Corporation
    Inventors: Shimpei Yoshioka, Yoshihiko Ono, Hiroyuki Masuoka
  • Patent number: 11066721
    Abstract: A high-strength hot-dip coated hot-rolled steel sheet excellent in terms of surface appearance quality and coating adhesiveness and a method for manufacturing. The method includes performing hot rolling followed by pickling on steel to form a pickled steel sheet, the steel having a chemical composition containing, by mass %, C: 0.02% or more and 0.30% or less, Si: 0.01% or more and 1.0% or less, Mn: 0.3% or more and 2.5% or less, P: 0.08% or less, S: 0.02% or less, Al: 0.001% or more and 0.20% or less, and Fe and inevitable impurities. The method further includes performing rolling with a rolling reduction ratio of 1% or more and 10% or less, and a hot-dip coating treatment. The obtained steel sheet has an arithmetic average roughness Ra of 2.0 ?m or less on the surface of the steel sheet, and a tensile strength of 590 MPa or more.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: July 20, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Masaki Koba, Yoshitsugu Suzuki, Hiroyuki Masuoka
  • Patent number: 11008635
    Abstract: Provided is a high-strength cold-rolled steel sheet has a chemical composition containing, by mass %, C: 0.10% or more and 0.6% or less, Si: 1.0% or more and 3.0% or less, Mn: more than 2.5% and 10.0% or less, P: 0.05% or less, S: 0.02% or less, Al: 0.01% or more and 1.5% or less, N: 0.005% or less, Cu: 0.05% or more and 0.50% or less, and the balance being Fe and inevitable impurities, and a tensile strength of 1180 MPa or more, in which a steel sheet surface coverage of oxides mainly containing Si is 1% or less, a steel sheet surface coverage of iron-based oxides is 40% or less, CuS/CuB is 4.0 or less, and a tensile strength is 1180 MPa or more, where CuS denotes a Cu concentration in a surface layer of a steel sheet and CuB denotes a Cu concentration in base steel.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 18, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Shimpei Yoshioka, Yoshihiko Ono, Yusuke Kimata, Hiroyuki Masuoka
  • Publication number: 20210115530
    Abstract: An object is to provide a cold-rolled steel sheet having excellent phosphatability, even in the case where a phosphating solution has a low temperature, and a method for manufacturing the steel sheet, and a cold-rolled steel sheet for annealing. A cold-rolled steel sheet for annealing has a chemical composition containing C: 0.01 mass % to 0.30 mass %, Si: less than 0.10 mass % (including 0.0 mass %), Mn: 2.0 mass % to 3.5 mass %, P: 0.05 mass % or less, S: 0.01 mass % or less, and Al: 0.15 mass % or less, the balance being Fe and inevitable impurities, in which Si and/or Si oxide exists on a surface of the steel sheet with an average coating thickness of 1 nm to 20 nm.
    Type: Application
    Filed: March 20, 2019
    Publication date: April 22, 2021
    Applicant: JFE Steel Corporation
    Inventors: Hiroyuki Masuoka, Shinichi Furuya, Akira Matsuzaki, Hayato Takeyama
  • Patent number: 10907255
    Abstract: There is provided a high-strength galvanized steel sheet and a relatively low-strength galvanized steel sheet that undergoes complex forming, a galvanized steel sheet that exhibits consistently excellent press formability and that generates no hazardous fumes during welding as well as a manufacturing method therefor. The galvanized steel sheet has an oxide layer on the surface, where the oxide layer has an average thickness of 20 nm or more, and the oxide layer contains 30 mg/m2 or more of Zn, 1.0 mg/m2 or more of S, and 50 mg/m2 or more and 1,000 mg/m2 or less of polyethylene particles having an average particle size of 5.0 ?m or less.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 2, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Shinichi Furuya, Akira Matsuzaki, Hiroyuki Masuoka, Katsuya Hoshino
  • Publication number: 20200199705
    Abstract: A method for manufacturing a high-strength galvanized steel sheet having excellent strength-elongation balance, coating adhesiveness, and surface appearance. The method includes: (i) a first heating process of heating a steel sheet having a predetermined chemical composition, (ii) a first pickling process of pickling the steel sheet which was subjected to the first heating process in an oxidizing acidic aqueous solution, (iii) a second pickling process of pickling the steel sheet which was subjected to the first pickling process in a non-oxidizing acidic aqueous solution, (iv) a second heating process of holding the steel sheet, which was subjected to the second pickling process, at a temperature range of 700° C. or higher and 900° C. or lower in a hydrogen-containing atmosphere for 20 seconds or more and 300 seconds or less, and (v) performing a galvanizing treatment on the steel sheet which was subjected to the second heating process.
    Type: Application
    Filed: April 24, 2018
    Publication date: June 25, 2020
    Applicant: JFE STEEL CORPORATION
    Inventors: Shotaro TERASHIMA, Yusuke FUSHIWAKI, Yoichi MAKIMIZU, Hiroyuki MASUOKA, Hiroshi HASEGAWA
  • Publication number: 20200071784
    Abstract: A high-strength cold-rolled steel sheet has a composition that contains, in terms of mass %, C: 0.10% or more and 0.50% or less, Si: 1.0% or more and 3.0% or less, Mn: 1.0% or more and 2.5% or less, P: 0.05% or less, S: 0.02% or less, Al: 0.01% or more and 1.5% or less, N: 0.005% or less, Cu: 0.05% or more and 0.50% or less, and the balance being Fe and unavoidable impurities, wherein a proportion of a steel sheet surface covered with oxides mainly composed of Si is 1% or less, a proportion of the steel sheet surface covered with Fe oxides is 40% or less, CuS/CuB is 4.0 or less, and a tensile strength is 1180 MPa or more, when CuS denotes the Cu content in a steel sheet surface layer and CuB denotes the Cu content in a base material.
    Type: Application
    Filed: February 15, 2017
    Publication date: March 5, 2020
    Inventors: Shimpei Yoshioka, Yoshihiko Ono, Hiroyuki Masuoka
  • Publication number: 20200024744
    Abstract: There is provided a high-strength galvanized steel sheet and a relatively low-strength galvanized steel sheet that undergoes complex forming, a galvanized steel sheet that exhibits consistently excellent press formability and that generates no hazardous fumes during welding as well as a manufacturing method therefor. The galvanized steel sheet has an oxide layer on the surface, where the oxide layer has an average thickness of 20 nm or more, and the oxide layer contains 30 mg/m2 or more of Zn, 1.0 mg/m2 or more of S, and 50 mg/m2 or more and 1,000 mg/m2 or less of polyethylene particles having an average particle size of 5.0 ?m or less.
    Type: Application
    Filed: February 1, 2018
    Publication date: January 23, 2020
    Applicant: JFE STEEL CORPORATION
    Inventors: Shinichi FURUYA, Akira MATSUZAKI, Hiroyuki MASUOKA, Katsuya HOSHINO
  • Patent number: 10316381
    Abstract: A method is provided for producing a hot-pressed member including heating a Ni-based coated steel sheet, which includes, on a surface thereof, a Zn—Ni alloy coating layer containing 13% by mass or more of Ni, in a temperature region of an Ac3 transformation point to 1200° C.; and then hot-pressing the steel sheet.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 11, 2019
    Assignee: JFE Steel Corporation
    Inventors: Hiroki Nakamaru, Seiji Nakajima, Tatsuya Miyoshi, Hiroyuki Masuoka, Shinji Ootsuka
  • Publication number: 20190040490
    Abstract: Provided is a high-strength cold-rolled steel sheet has a chemical composition containing, by mass %, C: 0.10% or more and 0.6% or less, Si: 1.0% or more and 3.0% or less, Mn: more than 2.5% and 10.0% or less, P: 0.05% or less, S: 0.02% or less, Al: 0.01% or more and 1.5% or less, N: 0.005% or less, Cu: 0.05% or more and 0.50% or less, and the balance being Fe and inevitable impurities, and a tensile strength of 1180 MPa or more, in which a steel sheet surface coverage of oxides mainly containing Si is 1% or less, a steel sheet surface coverage of iron-based oxides is 40% or less, CuS/CuB is 4.0 or less, and a tensile strength is 1180 MPa or more, where CuS denotes a Cu concentration in a surface layer of a steel sheet and CUB denotes a Cu concentration in base steel.
    Type: Application
    Filed: February 15, 2017
    Publication date: February 7, 2019
    Applicant: JFE Steel Corporation
    Inventors: Shimpei Yoshioka, Yoshihiko Ono, Yusuke Kimata, Hiroyuki Masuoka
  • Publication number: 20190032185
    Abstract: Provided are a high-yield-ratio high-strength galvanized steel sheet that includes a Mn-containing steel sheet serving as a base material, and a production method therefor. The high-yield-ratio high-strength galvanized steel sheet includes a steel sheet having a specific composition and a metallographic structure including, by area percentage, 20% or less ferrite, 40% or more in total of bainite and tempered martensite, and 60% or less as-quenched martensite, the bainite having an average grain size of 6.0 ?m or less, and a coated layer arranged on the steel sheet, the coated layer having a coating weight per side of 20 to 120 g/m2 and having a Mn content of 0.05 g/m2 or less, in which the high-yield-ratio high-strength galvanized steel sheet has a yield ratio of 65% or more and a tensile strength of 950 MPa or more.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Applicant: JFE Steel Corpration
    Inventors: Hiromi Yoshitomi, Takuya Hirashima, Hiroyuki Masuoka, Seisuke Tsuda, Masaki Koba, Yasuhiro Nishimura, Tatsuya Nakagaito
  • Publication number: 20190032187
    Abstract: Provided are a high-yield-ratio high-strength galvanized steel sheet and a method for manufacturing thereof. The high-yield-ratio high-strength galvanized steel sheet has a steel sheet having a specified chemical composition and a metallographic structure including, in terms of area ratio, in terms of area ratio, 15% or less of ferrite, 20% or more and 50% or less of martensite, and bainite and tempered martensite in a total amount of 30% or more, and a galvanized layer formed on the steel sheet having a coating weight of 20 g/m2 to 120 g/m2 per side, in which a yield strength ratio is 65% or more, a tensile strength is 950 MPa or more, and Mn oxides are contained in the galvanized layer in an amount of 0.015 g/m2 to 0.050 g/m2.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Applicant: JFE Steel Corporation
    Inventors: HIROMI YOSHITOMI, Hiroyuki Masuoka, Seisuke Tsuda, Yasuhiro Nishimura, Masaki Koba