Patents by Inventor Yusuke Wada

Yusuke Wada 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).

  • Patent number: 12650386
    Abstract: A test strip holder includes: a holding member at which at least a portion of a lower side of an inner periphery is a cylindrical surface having a cylindrical shape, and at whose interior a test strip is held, and at which a direction of an imaginary central axis of the cylindrical surface is a horizontal direction or a direction inclined with respect to a vertical direction; an opening portion provided in an outer surface of the holding member; a sorting member rotating at an interior of the holding member around a rotation axis that coincides with the central axis; a pushing piece projecting out from a distal end edge, which is parallel to the central axis, at the sorting member in a direction of rotation of the sorting member; and a sorting piece projecting out from a distal end of the pushing piece toward the cylindrical surface.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: June 9, 2026
    Assignee: ARKRAY, Inc.
    Inventors: Noriaki Furusato, Yusuke Wada
  • Patent number: 12637744
    Abstract: Provided is a hot-dip galvanized steel sheet that has a high YR, as well as high ductility, stretch flangeability, and bendability, improved shear workability, and a TS of 1,180 MPa or more. The base steel sheet of the hot-dip galvanized steel sheet has a defined chemical composition and steel microstructure. In particular, a number ratio of retained austenite (?) having an aspect ratio of 2.0 or less is more than 50%, a number of bins of hardness frequency: 0.25 or more is 1, the area ratio of quenched martensite in a surface layer is 80% or less, a surface layer softening thickness is 10 ?m or more and 100 ?m or less, and the amount of low temperature range diffusible hydrogen is 0.015 mass ppm or less.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: May 26, 2026
    Assignee: JFE STEEL CORPORATION
    Inventors: Hidekazu Minami, Yusuke Wada, Yuki Toji, Yoichi Makimizu
  • Publication number: 20260103785
    Abstract: Provided is a high strength steel sheet having high strength and excellent component strength, ductility, stretch flangeability, bendability, and warm workability. The high strength steel sheet has a chemical composition containing, in mass %, C: 0.030% to 0.500%, Si: 0.01% to 2.50%, Mn: 0.10% to 5.00%, P: 0.100% or less, S: 0.0200% or less, Al: 1.000% or less, N: 0.0100% or less, and O: 0.0100% or less, with the balance being Fe and inevitable impurity. At a ¼ sheet thickness position, the steel microstructure is such that area fractions are 60% or more martensite, 40% or less ferrite, and 20% or less retained austenite, and the lattice constant aM of martensite satisfies the following 1. 0 ? 0 ? 0 ? 0 ? 5 ? a M / a R ? 1.005 .
    Type: Application
    Filed: August 28, 2023
    Publication date: April 16, 2026
    Applicant: JFE STEEL CORPORATION
    Inventors: Yusuke WADA, Hidekazu MINAMI, Yuki TOJI
  • Patent number: 12590946
    Abstract: A test strip container includes: an accommodating member in which a test strip is accommodated; a moving member moving the test strip therein; a door member opening and closing at a side surface of the accommodating member to discharge the test strip out of the accommodating member, and cutting the interior and the exterior of the accommodating member off from each other when closed; a door accommodating portion covering the door member, in which the door member can open and close; and a discharge opening cutting the interior and an exterior of the door accommodating portion off from each other when closed, and is provided at the door accommodating portion so as to open and close to discharge the test strip to the exterior of the door accommodating portion, the discharge opening being able to open when the accommodating member is closed by the door member.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: March 31, 2026
    Assignee: ARKRAY, Inc.
    Inventors: Noriaki Furusato, Yusuke Wada
  • Patent number: 12565690
    Abstract: A steel sheet has a specific chemical composition and a steel microstructure including, in terms of area fraction, ferrite: 60% or more and 85% or less, bainite: 3% or more and 15% or less, retained austenite: 3% or more and 15% or less, fresh martensite: 3% or more and 15% or less, and the remainder: 5% or less. Cementite particles are present in the retained austenite, a ratio of an area fraction of the cementite particles in the retained austenite to an area fraction of the retained austenite is 5% or more and 25% or less, and the steel sheet has a tensile strength of 590 MPa or more and less than 780 MPa.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 3, 2026
    Assignee: JFE Steel Corporation
    Inventors: Yusuke Wada, Tatsuya Nakagaito, Shotaro Terashima, Lingling Yang, Takeshi Yokota, Shunsuke Yamamoto, Yuki Takeda
  • Patent number: 12565691
    Abstract: A steel sheet according to the present invention has a specific chemical composition and a steel microstructure including, in terms of area fraction, ferrite: 20% or more and 60% or less, a total of bainite and tempered martensite: 25% or more and 60% or less, retained austenite: 7% or more and 20% or less, fresh martensite: 8% or more and 40% or less, and the remainder: 5% or less. Cementite particles are present in the retained austenite, a ratio of an area fraction of the cementite particles in the retained austenite to an area fraction of the retained austenite is 5% or more and 25% or less, and the steel sheet has a tensile strength of 980 MPa or more.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 3, 2026
    Assignee: JFE Steel Corporation
    Inventors: Yusuke Wada, Tatsuya Nakagaito, Shotaro Terashima, Lingling Yang, Takeshi Yokota
  • Patent number: 12467110
    Abstract: A high strength steel sheet with a chemical composition containing C, Si, Mn, P, S, Al, N, Nb, Ti, and B, where [% Si]/[% Mn] is 0.10 or more and 0.60 or less, and free Ti content determined from Formula (1), below, is 0.001 mass % or more, with the balance being Fe and inevitable impurity. In a steel sheet surface layer, a total amount of Nb solute and 100 nm or smaller precipitate is 0.002 mass % or more. free ? Ti ? content ? ( % ) = [ % ? Ti ] - ( 47.9 / 14. ) × [ % ? N ] - ( 47.9 / 32.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: November 11, 2025
    Assignee: JFE STEEL CORPORATION
    Inventors: Hidekazu Minami, Yusuke Wada, Yuki Toji, Takeshi Nishiyama, Michitoshi Saeki
  • Publication number: 20250313926
    Abstract: A base steel sheet is disclosed having a specified chemical composition and a steel microstructure at a quarter thickness position containing specified ranges of ferrite, fresh martensite, retained austenite, bainite, tempered bainite, and tempered martensite, the value obtained by dividing the total area fraction of isolated island-like fresh martensite and isolated island-like retained austenite by the sum of the area fraction of fresh martensite and the volume fraction of retained austenite in a ferrite grain is 0.65 or more, the isolated island-like fresh martensite and the isolated island-like retained austenite in the ferrite grain has an average grain size of 2.0 ?m or less, and the amount of diffusible hydrogen in the base steel sheet is 0.50 ppm by mass or less.
    Type: Application
    Filed: February 27, 2023
    Publication date: October 9, 2025
    Applicant: JFE Steel Corporation
    Inventors: Yoshiyasu KAWASAKI, Yusuke WADA, Hidekazu MINAMI, Tatsuya NAKAGAITO
  • Publication number: 20250309303
    Abstract: A manufacturing device of a laminated structure body has: a pair of crimping members disposed to face with each other; a cushion material having flexibility and conductivity on a portion of at least one crimping member of the pair of crimping members facing the other crimping member; a crimping device to hold, press, and crimp a plurality of laminated sheet-shaped members between the one crimping member and the other crimping member so as to constitute a laminated structure body; and, a short-circuit inspection circuit that detects presence or absence of a short-circuit spot in the laminated structure body during a process where the crimping device crimps the plurality of sheet-shaped members in one piece to constitute the laminated structure body.
    Type: Application
    Filed: February 25, 2025
    Publication date: October 2, 2025
    Inventors: Yusuke WADA, Satoru NISHIGUCHI
  • Publication number: 20250290186
    Abstract: A base steel sheet has a specified chemical composition and has a steel microstructure at a quarter thickness position containing specified ranges of ferrite, fresh martensite, retained austenite, bainite, tempered bainite, and tempered martensite, island-like fresh martensite and island-like retained austenite in bainite grains and in tempered bainite grains have an average grain size of 2.00 ?m or less, carbides in the bainite grains and in the tempered bainite grains have an average particle size of 500 nm or less, carbides with a particle size of 300 nm or more in the bainite grains and in the tempered bainite grains have a number density of 3.0/?m2 or less, and the amount of diffusible hydrogen in the base steel sheet is 0.50 ppm by mass or less.
    Type: Application
    Filed: February 27, 2023
    Publication date: September 18, 2025
    Applicant: JFE Steel Corporation
    Inventors: Yoshiyasu KAWASAKI, Yusuke WADA, Hidekazu MINAMI, Tatsuya NAKAGAITO
  • Publication number: 20250226427
    Abstract: A fuel cell bonding jig includes an upper jig and a lower jig. The fuel cell bonding jig is configured to be able to be set to a first state that corresponds to a state in which a first film is arranged on a lower surface of the upper jig, a second film is arranged on an upper surface of the lower jig, and an adhesive is applied to the film. A second state in which the first film and the second film face each other across an interval in a vertical direction is entered when the upper jig is attached onto the lower jig while the fuel cell bonding jig is in the first state. The fuel cell bonding jig is configured to be able to, from the second state, press the first film onto the second film.
    Type: Application
    Filed: December 11, 2024
    Publication date: July 10, 2025
    Inventors: Takumi YAMAHATA, Yusuke WADA, Taichi KITAGAWA
  • Publication number: 20250226430
    Abstract: With the lamination method for fuel cell components, the gas diffusion layer is laminated to the intermediate layer during the manufacturing stage of a fuel cell that includes an intermediate layer and gas diffusion layers on both sides of the intermediate layer. The intermediate layer includes an electrolyte membrane and a resin film provided around the electrolyte membrane. With the method of laminating fuel cell components, a moisture-curing adhesive is applied to the resin film. Thereafter, the gas diffusion layer is brought into contact with the adhesive, thereby laminating the gas diffusion layer and the intermediate layer with the adhesive.
    Type: Application
    Filed: December 31, 2024
    Publication date: July 10, 2025
    Inventors: Ryotaro YAMAGAMI, Takumi YAMAHATA, Yusuke WADA, Taichi KITAGAWA
  • Publication number: 20250191388
    Abstract: A food hygiene management device according to the present disclosure comprises a core temperature acquisition unit that acquires core temperature information indicating a core temperature of a food, a photograph acquisition unit that acquires photograph data on the food, and a composition unit that generates composed photograph data in which the core temperature information, time information indicating when the core temperature was measured, and the photograph data of the food are displayed.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 12, 2025
    Inventors: Yusuke WADA, Hideaki HARUMOTO
  • Publication number: 20250137084
    Abstract: There is provided a high-strength steel sheet having a tensile strength of 1180 MPa or more. The high-strength steel sheet having a component composition containing C: 0.090 mass % or more and 0.390 mass % or less, Si: 0.01 mass % or more and 2.00 mass % or less, Mn: 2.00 mass % or more and 4.00 mass % or less, P: 0.100 mass % or less, S: 0.0200 mass % or less, Al: 1.000 mass % or less, N: 0.0100 mass % or less, and O: 0.0100 mass % or less, with a remaining part consisting of Fe and inevitable impurities; and a microstructure. In the microstructure, an area ratio of martensite is 70% or more, an area ratio of ferrite is 10% or less, an area ratio of retained austenite is 10% or less, and a proportion of the number of martensite blocks in which metastable carbides are present to the number of martensite blocks is 2% or more.
    Type: Application
    Filed: August 5, 2022
    Publication date: May 1, 2025
    Applicant: JFE Steel Corporation
    Inventors: Yusuke Wada, Hidekazu Minami, Yuki Toji
  • Patent number: 12258647
    Abstract: A steel sheet according to the present invention has a specific chemical composition and a steel microstructure including, in terms of area fraction, ferrite: 40% or more and 70% or less, a total of bainite and tempered martensite: 5% or more and 30% or less, retained austenite: 4% or more and 18% or less, fresh martensite: 8% or more and 35% or less, and the remainder: 5% or less. Cementite particles are present in the retained austenite, a ratio of an area fraction of the cementite particles in the retained austenite to an area fraction of the retained austenite is 5% or more and 25% or less, and the steel sheet has a tensile strength of 780 MPa or more and less than 980 MPa.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 25, 2025
    Assignee: JFE Steel Corporation
    Inventors: Yusuke Wada, Tatsuya Nakagaito, Shotaro Terashima, Lingling Yang, Takeshi Yokota
  • Publication number: 20240287637
    Abstract: A high strength steel sheet with a chemical composition containing C, Si, Mn, P, S, Al, N, Nb, Ti, and B, where [% Si]/[% Mn] is 0.10 or more and 0.60 or less, and free Ti content determined from Formula (1), below, is 0.001 mass % or more, with the balance being Fe and inevitable impurity. In a steel sheet surface layer, a total amount of Nb solute and 100 nm or smaller precipitate is 0.002 mass % or more. free ? Ti ? content ? ( % ) = [ % ? Ti ] - ( 47.9 / 14. ) × [ % ? N ] - ( 47.9 / 32.
    Type: Application
    Filed: May 31, 2022
    Publication date: August 29, 2024
    Applicant: JFE STEEL CORPORATION
    Inventors: Hidekazu MINAMI, Yusuke WADA, Yuki TOJI, Takeshi NISHIYAMA, Michitoshi SAEKI
  • Publication number: 20240263287
    Abstract: Provided is a hot-dip galvanized steel sheet that has a high YR, as well as high ductility, stretch flangeability, and bendability, improved shear workability, and a TS of 1,180 MPa or more. The base steel sheet of the hot-dip galvanized steel sheet has a defined chemical composition and steel microstructure. In particular, a number ratio of retained austenite (y) having an aspect ratio of 2.0 or less is more than 50%, a number of bins of hardness frequency: 0.25 or more is 1, the area ratio of quenched martensite in a surface layer is 80% or less, a surface layer softening thickness is 10 ?m or more and 100 ?m or less, and the amount of low temperature range diffusible hydrogen is 0.015 mass ppm or less.
    Type: Application
    Filed: March 16, 2022
    Publication date: August 8, 2024
    Applicant: JFE STEEL CORPORATION
    Inventors: Hidekazu MINAMI, Yusuke WADA, Yuki TOJI, Yoichi MAKIMIZU
  • Publication number: 20240156135
    Abstract: A method for manufacturing frozen noodles including a step of subjecting raw noodles or dried noodles manufactured by an ordinary method to boiling treatment to produce boiled noodles containing moisture less than moisture of the noodles after cooking, a step of applying water to surfaces of the boiled noodles by sprinkling or dipping, a step of filling a freezing container with the boiled noodles having water applied to the surfaces and an ice lump containing frozen water, and a step of subjecting the boiled noodles to freezing treatment, in which the freezing treatment is started within 120 seconds from an end of the boiling treatment.
    Type: Application
    Filed: June 30, 2022
    Publication date: May 16, 2024
    Inventors: Mai UTSUMI, Yusuke WADA, Takaharu YOKOISHI, Atsushi ONISHI, Toshio YOSHINUMA
  • Patent number: 11962050
    Abstract: A method for producing a resin frame equipped membrane electrode assembly includes: a first conveyance step of supporting a sheet-shaped member having a cathode and an electrolyte membrane by a resin frame member to which the sheet-shaped member is joined and linearly conveying the supported sheet-shaped member to a pressure bonding device; a second conveyance step of conveying an anode to the pressure bonding device by way of a rotary table; and a pressure bonding step of heating and pressing the cathode and the anode from above and below by the pressure bonding device to thereby integrate the cathode and the anode together.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 16, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kohei Yoshida, Kensuke Namba, Yosuke Konno, Masami Kurimoto, Yusuke Wada
  • Publication number: 20230349020
    Abstract: A steel sheet according to the present invention has a specific chemical composition and a steel microstructure including, in terms of area fraction, ferrite: 40% or more and 70% or less, a total of bainite and tempered martensite: 5% or more and 30% or less, retained austenite: 4% or more and 18% or less, fresh martensite: 8% or more and 35% or less, and the remainder: 5% or less. Cementite particles are present in the retained austenite, a ratio of an area fraction of the cementite particles in the retained austenite to an area fraction of the retained austenite is 5% or more and 25% or less, and the steel sheet has a tensile strength of 780 MPa or more and less than 980 MPa.
    Type: Application
    Filed: February 24, 2021
    Publication date: November 2, 2023
    Applicant: JFE Steel Corporation
    Inventors: Yusuke Wada, Tatsuya Nakagaito, Shotaro Terashima, Lingling Yang, Takeshi Yokota