Patents by Inventor Daisuke Matsuo

Daisuke Matsuo 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: 12680151
    Abstract: The steel material of the present disclosure includes a chemical composition consisting of, in mass %, C: 0.035% or less, Si: 1.00% or less, Mn: 1.00% or less, P: 0.030% or less, S: 0.0050% or less, sol. Al: 0.005 to 0.100%, N: 0.001 to 0.020%, Ni: 5.00 to 7.50%, Cr: 10.00 to 14.00%, Cu: 0.01 to less than 1.50%, Mo: 1.50 to 3.50%, V: 0.01 to 1.00%, Ti: 0.02 to 0.30%, Co: 0.01 to 0.50%, Ca: 0.0003 to 0.0030%, O: 0.0050% or less, W: 0 to 1.50%, Nb: 0 to 0.50%, B: 0 to 0.0050%, Mg: 0 to 0.0050%, and rare earth metals (REM): 0 to 0.020%, with the balance being Fe and impurities, in which a total number density of Mn sulfide having an equivalent circular diameter of 1.0 ?m or more and Ca sulfide having an equivalent circular diameter of 2.0 ?m or more is 0.50/mm2 or less.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: July 14, 2026
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Daisuke Matsuo, Yusaku Tomio
  • Publication number: 20260194604
    Abstract: A magnetic detection system comprises: a cell in which an alkali metal is sealed; a laser light source; a light detection unit configured to generate a light detection signal; a coil configured to apply a magnetic field in a predetermined direction inside the cell; and first and second magnetic sensor modules each having a control unit configured to supply a modulation signal to the coil, execute digital processing on a magnetic-field detection signal output from the light detection unit using a digital signal for demodulation, and generate a digital processing signal indicating a magnetic-field intensity inside the cell, wherein the control unit of the second magnetic sensor module shares the modulation signal supplied from the first magnetic sensor module to supply the modulation signal to the coil, and uses a signal obtained by performing A/D conversion on the modulation signal as the digital signal for demodulation.
    Type: Application
    Filed: January 6, 2026
    Publication date: July 9, 2026
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takeshi ENDO, Daisuke MATSUO, Natsuki EJIRI
  • Publication number: 20260164157
    Abstract: A housing including an arrangement space therein and in which an insertion hole communicating with the arrangement space is formed; a control circuit board arranged in the arrangement space; an operation button including a pressed portion having a front surface formed as a pressed surface to be pressed when the operation button is operated and an engagement protrusion protruding from the pressed portion and inserted into the insertion hole; and a flexible printed wiring board on which an antenna pattern is formed are provided, and the flexible printed wiring board is attached to a back surface of the pressed portion.
    Type: Application
    Filed: September 1, 2022
    Publication date: June 11, 2026
    Inventors: RYO TSUCHIYA, TAKAYUKI HORIKIRI, DAISUKE MATSUO, KENTO OOMORI
  • Patent number: 12522904
    Abstract: The martensitic stainless steel material according to the present disclosure consists of C: less than 0.030%, Si: 1.00% or less, Mn: 0.05 to 2.00%, Cr: 11.50 to 14.00%, Ni: 5.00 to 7.50%, Mo: 1.10 to 3.50%, Cu: 0.50 to 3.50%, Co: 0.01 to 0.30%, Al: 0.001 to 0.100%, N: 0.001 to 0.100%, and the balance: Fe and impurities. The microstructure is composed of retained austenite in an amount of 0 to 15 vol %, and ferrite in an amount of 0 to 10 vol %, with the balance being martensite. The yield strength is 862 MPa or more, and a number density of Cu precipitates is 3.0×1021 to 50.0×1021/m3.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 13, 2026
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yusaku Tomio, Daisuke Matsuo
  • Patent number: 12522905
    Abstract: The duplex stainless steel seamless pipe according to the present disclosure has the chemical composition described in the description and a microstructure consisting of 30 to 55% of ferrite, and austenite. In a square observation field of view region with sides of 250 ?m including a center portion of the wall thickness and including a T direction and a C direction, a number of intersections NT which is a number of intersections between the line segment T1 to T4 described in the description and ferrite interfaces is 65 or more. A number of intersections NC which is a number of intersections between the line segments C1 to C4 described in the description and ferrite interfaces is 50 or more.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: January 13, 2026
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Mikiko Noguchi, Jun Nakamura, Masayuki Sagara, Daisuke Matsuo, Yoshihei Wakino
  • Patent number: 12428712
    Abstract: A martensitic stainless steel material according to the present disclosure contains, in mass %, C: 0.030% or less, Ni: 5.05 to 7.50%, Cr: 10.00 to 14.00%, and Mo: 1.50 to 3.50%, and has a yield strength of 758 MPa or more, and on two line segments LS of 1000 ?m extending in a wall thickness direction with arbitrary two points as a center located at positions at a depth of 2 mm from the inner surface, a degree of Cr segregation ?Cr defined by Formula (1) and a degree of Mo segregation ?Mo defined by Formula (2) satisfy Formula (3): ?Cr=([Cr*]max?[Cr*]min)/[Cr*]ave??(1) ?Mo=([Mo*]max?[Mo*]min)/[Mo*]ave??(2) ?Cr+?Mo?0.59??(3).
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: September 30, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Daisuke Matsuo, Yusaku Tomio
  • Publication number: 20250236939
    Abstract: The martensitic stainless steel material according to the present disclosure satisfies a chemical composition described herein, and satisfies Formula (1). The yield strength is 758 to less than 862 MPa. In the martensitic stainless steel material, a number ratio of Mg oxides having an equivalent circular diameter of 2.0 ?m or more with respect to Ca oxides having an equivalent circular diameter of 2.0 ?m or more, Ca sulfides having an equivalent circular diameter of 2.0 ?m or more, and the Mg oxides having an equivalent circular diameter of 2.0 ?m or more is 40.0% or more. 0.001 ? Ca + Mg ? 0.005 ( 1 ) Where, a content of a corresponding element in percent by mass is substituted for each symbol of an element in Formula (1).
    Type: Application
    Filed: May 12, 2023
    Publication date: July 24, 2025
    Inventors: Kyohei KANKI, Daisuke MATSUO, Yuji ARAI
  • Publication number: 20250146112
    Abstract: A martensitic stainless steel material having high strength, and having excellent corrosion resistance in a corrosive environment in which SOx or NOx is mixed is provided. The martensitic stainless steel material according to the present disclosure satisfies a chemical composition described herein, and satisfies Formula (1). The yield strength is 862 MPa or more. In the martensitic stainless steel material, a number ratio of Mg oxides having an equivalent circular diameter of 2.0 ?m or more with respect to Ca oxides having an equivalent circular diameter of 2.0 ?m or more, Ca sulfides having an equivalent circular diameter of 2.0 ?m or more, and the Mg oxides having an equivalent circular diameter of 2.0 ?m or more is 45.0% or more. 0.001 ? Ca + Mg ? 0.005 ( 1 ) Where, a content of a corresponding element in percent by mass is substituted for each symbol of an element in Formula (1).
    Type: Application
    Filed: May 12, 2023
    Publication date: May 8, 2025
    Inventors: Kyohei KANKI, Daisuke MATSUO, Yuji ARAI
  • Publication number: 20250137110
    Abstract: The duplex stainless steel pipe according to the present disclosure consists of, by mass %, C: 0.030% or less, Si: 1.00% or less, Mn: 0.10 to 7.00%, P: 0.040% or less, S: 0.0050% or less, Cr: 20.0 to 30.0%, Ni: 4.2 to 10.0%, Mo: 0.5 to 5.0%, Cu: 0.5 to 6.0%, N: less than 0.350%, O: 0.0005 to 0.0100%, and Ca: 0.0005 to 0.0100%, with the balance being Fe and impurities. A microstructure consists of, in volume ratio, ferrite in an amount of 30 to 80% with the balance being austenite. A yield strength is 552 MPa or more. A number density of Ca oxides having an equivalent circular diameter of 2.0 ?m or more is 500/100 mm2 or more.
    Type: Application
    Filed: September 29, 2022
    Publication date: May 1, 2025
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Seiya OKADA, Yuji ARAI, Daisuke MATSUO
  • Publication number: 20250129461
    Abstract: A duplex stainless steel material that has excellent general corrosion resistance and pitting resistance in a supercritical corrosive environment in which SOX gas and O2 gas are contained in a supercritical CO2 gas is provided. A duplex stainless steel material of the present disclosure has the chemical composition described in the description, and in the duplex stainless steel material, on a precondition that the content of each element is within a range described in the description, Fn defined by Formula (1) is 44.0 or more, and a total number per 1 mm2 of Mn sulfides having an equivalent circular diameter of 1.0 ?m or more and Ca sulfides having an equivalent circular diameter of 2.0 ?m or more is 0.50/mm2 or less. Fn = Cr + 3.3 ( Mo + 0.5 W ) + 16 ? N + 2 ? Ni + Cu + 2 ? Co + 10 ? Sn ( 1 ) Where, the content in mass % of a corresponding element is substituted for each symbol of an element in Formula (1).
    Type: Application
    Filed: October 4, 2022
    Publication date: April 24, 2025
    Inventors: Daisuke MATSUO, Yuji ARAI
  • Publication number: 20250102657
    Abstract: An information processing system according to an embodiment of the present technology includes a plurality of radar apparatuses, information processing apparatuses, and an output apparatus. The information processing apparatus includes a distance calculator and a processor. The distance calculator is used to calculate a distance to an object, the calculation of the distance being performed using at least one of the plurality of radar apparatuses.
    Type: Application
    Filed: March 9, 2022
    Publication date: March 27, 2025
    Inventor: DAISUKE MATSUO
  • Publication number: 20240401722
    Abstract: A martensitic stainless steel pipe according to the present disclosure consists of, in mass %, C: less than 0.030%, Si: 1.00% or less, Mn: 1.00% or less, P: 0.030% or less, S: 0.0010 to 0.0050%, Cr: 10.00 to 14.00%, Ni: 5.00 to 7.50%, Mo: 1.10 to 3.50%, Cu: 1.00 to 3.50%, Al: 0.005 to 0.050%, N: 0.0030 to 0.0500%, V: 0.01 to 0.30%, Ti: 0.020 to 0.150%, Co: 0.01 to 0.50%, Ca: 0.0010 to 0.0050%, and the balance: Fe and impurities. The yield strength is 758 MPa or more. A number density of Ca sulfides having an equivalent circular diameter of 1.0 ?m or more is 3/mm2 or more.
    Type: Application
    Filed: September 29, 2022
    Publication date: December 5, 2024
    Inventors: Toshiya NISHIMURA, Daisuke MATSUO, Kyohei KANKI
  • Publication number: 20240401177
    Abstract: A duplex stainless steel material that has excellent general corrosion resistance and pitting resistance in a supercritical corrosive environment in which SOX gas and O2 gas are contained in a supercritical CO2 gas is provided. A duplex stainless steel material of the present disclosure has the chemical composition described in the description, and in the duplex stainless steel material, on a precondition that the content of each element is within a range described in the description, Fn defined by Formula (1) is 57.0 or more, and a total number per 1 mm2 of Mn sulfides having an equivalent circular diameter of 1.0 ?m or more and Ca sulfides having an equivalent circular diameter of 2.0 ?m or more is 0.50/mm2 or less. Fn = Cr + 3.3 ( M ? o + 0 . 5 ? W ) + 1 ? 6 ? N + 2 ? N ? i + C ? u + 2 ? C ? o + 10 ? Sn ( 1 ) Where, the content in mass % of a corresponding element is substituted for each symbol of an element in Formula (1).
    Type: Application
    Filed: October 4, 2022
    Publication date: December 5, 2024
    Inventors: Daisuke MATSUO, Yuji ARAI
  • Publication number: 20240401178
    Abstract: A martensitic stainless steel round bar of the present disclosure contains, in mass %, C: 0.030% or less, Cr: 10.00 to 14.00%, Ni: 5.00 to 7.50%, Mo: 1.50 to 4.00%, Cu: 1.00 to 3.50%, W: 0.01 to 2.00%, and Co: 0.010 to 0.500%, and has a yield strength of 862 MPa or more. When, at the center position of a cross section perpendicular to the axial direction of the martensitic stainless steel round bar, a dissolved Mo concentration is defined as [Mo]C, a dissolved W concentration is defined as [W]C, an Mo concentration in a residue obtained by constant-current electrolysis is defined as [Mo]R, and a W concentration in the residue is defined as [W]R, Formula (1) and Formula (2) are satisfied. F ? 1 = [ Mo ] C + 0.5 [ W ] C ? 2.45 ( 1 ) F ? 2 = F ? 1 / ( [ Mo ] R + [ W ] R ) ? 13.
    Type: Application
    Filed: October 25, 2022
    Publication date: December 5, 2024
    Inventors: Kyohei KANKI, Daisuke MATSUO, Hideki TAKABE, Toshiya NISHIMURA
  • Patent number: 12136533
    Abstract: According to the present invention, provided is an antenna mechanism 3 that adjusts the impedance of an antenna body through which a high-frequency current flows to generate plasma by means of a simple configuration, and generates plasma P, and comprises: the antenna body 31 through which high-frequency current flows; and one or a plurality of adjustment circuits 32 provided adjacent to the antenna body 31. The adjustment circuit 32 has a metal conductor 321 forming a closed circuit and a capacitor 322 forming the closed circuit.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 5, 2024
    Assignee: NISSIN ELECTRIC CO., LTD.
    Inventors: Yasunori Ando, Daisuke Matsuo
  • Patent number: 12043885
    Abstract: The chemical composition of the seamless steel pipe contains Cr: 15.00 to 18.00% in mass % and satisfies Formulae (1) and (2). Furthermore, in the microstructure, (I) a total volume ratio of ferrite and martensite is 80% or more, with the balance being retained austenite of a volume ratio of 20% or less, (II) the number of intersections NTL in the L-direction observation field of view is 38 or more and NTL/NL is 1.80 or more, and further (III) the number of intersections NTC in the C-direction observation field of view is 30 or more and NTC/NC is 1.70 or more. 156Al+18Ti+12Nb+11Mn+5V+328.125N+243.75C+12.5S?12.5??(1) Ca/S?4.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: July 23, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Daisuke Matsuo, Yusaku Tomio
  • Patent number: 11970759
    Abstract: The seamless steel pipe according to the present disclosure includes a chemical composition consisting of, in mass %, C: 0.030% or less, Si: 1.00% or less, Mn: 1.00% or less, P: 0.030% or less, S: 0.0050% or less, Al: 0.001 to 0.100%, N: 0.0500% or less, O: 0.050% or less, Ni: 5.00 to 6.50%, Cr: more than 10.00 to 13.40%, Cu: more than 1.50 to 3.50%, Mo: 1.00 to 4.00%, V: 0.01 to 1.00%, Ti: 0.050 to 0.300%, and Co: 0.010 to 0.300%, with the balance being Fe and impurities, and satisfying Formula (1), wherein a depassivation pH of an inner surface is 3.00 or less. Cr+2.0 Mo+0.5 Ni+2.0 Cu+0.5 Co?20.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kyohei Kanki, Masayuki Sagara, Yusaku Tomio, Daisuke Matsuo
  • Publication number: 20240018636
    Abstract: The steel material of the present disclosure includes a chemical composition consisting of, in mass %, C: 0.035% or less, Si: 1.00% or less, Mn: 1.00% or less, P: 0.030% or less, S: 0.0050% or less, sol. Al: 0.005 to 0.100%, N: 0.001 to 0.020%, Ni: 5.00 to 7.50%, Cr: 10.00 to 14.00%, Cu: 0.01 to less than 1.50%, Mo: 1.50 to 3.50%, V: 0.01 to 1.00%, Ti: 0.02 to 0.30%, Co: 0.01 to 0.50%, Ca: 0.0003 to 0.0030%, 0: 0.0050% or less, W: 0 to 1.50%, Nb: 0 to 0.50%, B: 0 to 0.0050%, Mg: 0 to 0.0050%, and rare earth metals (REM): 0 to 0.020%, with the balance being Fe and impurities, in which a total number density of Mn sulfide having an equivalent circular diameter of 1.0 ?m or more and Ca sulfide having an equivalent circular diameter of 2.0 ?m or more is 0.50/mm2 or less.
    Type: Application
    Filed: January 28, 2021
    Publication date: January 18, 2024
    Inventors: Daisuke MATSUO, Yusaku TOMIO
  • Publication number: 20240019539
    Abstract: The present technology relates to an information processing device, an information processing method, and an information processing system which enable reduction in a capacity of a transmission path required for transmission of sensor data. The information processing device extracts a part of sensor data of a distance measurement sensor to generate extracted data on the basis of a spectrum of a specific component of the sensor data. The present technology can be applied to a vehicle control system that performs processing related to vehicle travel assistance and automated driving.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 18, 2024
    Inventor: DAISUKE MATSUO
  • Publication number: 20230392241
    Abstract: A martensitic stainless steel material according to the present disclosure contains, in mass %, C: 0.030% or less, Ni: 5.05 to 7.50%, Cr: 10.00 to 14.00%, and Mo: 1.50 to 3.50%, and has a yield strength of 758 MPa or more, and on two line segments LS of 1000 ?m extending in a wall thickness direction with arbitrary two points as a center located at positions at a depth of 2 mm from the inner surface, a degree of Cr segregation ?Cr defined by Formula (1) and a degree of Mo segregation ?Mo defined by Formula (2) satisfy Formula (3): ?Cr=([Cr*]max?[Cr*]min)/[Cr*]ave??(1) ?Mo=([Mo*]max?[Mo*]min)/[Mo*]ave??(2) ?Cr+?Mo?0.59??(3).
    Type: Application
    Filed: October 7, 2021
    Publication date: December 7, 2023
    Inventors: Daisuke MATSUO, Yusaku TOMIO