Patents by Inventor Ko SATAKE

Ko SATAKE 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: 12752854
    Abstract: A vehicle body 1 includes a center pillar 4 and a side sill 5. A front portion 5a and a rear portion 5b of the side sill 5 are restricted from moving inward in a width direction at a front restricting position X2F and a rear restricting position X2R, respectively. The center pillar 4 includes an overlapping portion 22 that covers an external surface of the side sill 5. A center position of the center pillar 4 is specified as X0, a front end position of the overlapping portion 22 from the center position X0 is specified as X1F, and a distance from the center position X0 to the front restricting position X2F is specified as L0. A distance from the center position X0 to the end portion position X1F is specified as L1. A ratio L1/L0 between the distances is 0.36?L1/L0?0.48.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: October 6, 2026
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Masahiko Abe, Atsushi Ono, Shin Toyokawa, Ko Satake
  • Publication number: 20260145220
    Abstract: A press forming apparatus 300 includes a die 330, a punch 310, and a die pad 320. The die pad 320 is disposed inside the die 330. The die pad 320 is disposed opposed to the punch 310. At a bottom dead center PL, surfaces of the die pad 320 and the punch 310 that extend along a pressing direction P (first and second flange forming portions 313A, 313B, 324A, and 324B) have holes 400A and 400B. At the bottom dead center PL, the surfaces face the die 330. Edge portions 400aA and 400aB of the holes 400A and 400B are formed by the die pad 320 and the punch 310.
    Type: Application
    Filed: December 22, 2022
    Publication date: May 28, 2026
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Shin TOYOKAWA, Ko SATAKE
  • Publication number: 20250153774
    Abstract: A vehicle body 1 includes a center pillar 4 and a side sill 5. A front portion 5a and a rear portion 5b of the side sill 5 are restricted from moving inward in a width direction at a front restricting position X2F and a rear restricting position X2R, respectively. The center pillar 4 includes an overlapping portion 22 that covers an external surface of the side sill 5. A center position of the center pillar 4 is specified as X0, a front end position of the overlapping portion 22 from the center position X0 is specified as X1F, and a distance from the center position X0 to the front restricting position X2F is specified as L0. A distance from the center position X0 to the end portion position X1F is specified as L1. A ratio L1/L0 between the distances is 0.36?L1/L0?0.48.
    Type: Application
    Filed: February 22, 2023
    Publication date: May 15, 2025
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Masahiko ABE, Atsushi ONO, Shin TOYOKAWA, Ko SATAKE
  • Publication number: 20250128767
    Abstract: A vehicle body 1 includes a center pillar 4, and a side sill 5 that is connected to the center pillar 4. The side sill 5 has a closed cross-sectional shape including an outer surface 153a that is arranged in an orientation along the vertical direction Z and that faces outward in a vehicle width direction Y, a bottom surface 154a that is arranged below the outer surface 153a and that is in an orientation facing the ground, and a lower flange 155 projecting downward from the bottom surface 154a. The center pillar 4 includes an overlapping portion 22 arranged so as to cover an external surface of the side sill 5 at a portion connected to the side sill 5. A lower end 224b of the overlapping portion 22 extends along the bottom surface 154a of the side sill 5.
    Type: Application
    Filed: February 22, 2023
    Publication date: April 24, 2025
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Masahiko ABE, Atsushi ONO, Shin TOYOKAWA, Ko SATAKE
  • Publication number: 20240183017
    Abstract: This hot-stamping formed body has a predetermined chemical composition and has a microstructure in which an average grain size of prior austenite grains is 5 to 25 ?m, and a standard deviation of grain sizes of the prior austenite grains is 0.1 to 2.0 ?m. In addition, this steel sheet for hot stamping has a predetermined chemical composition and has a microstructure in which an average value of the pole densities of ferrite in the orientation group consisting of {100}<011> to {223}<110> is 10.0 or less, in entire ferrite, a number proportion of ferrite containing a carbide having an equivalent circle diameter of 0.2 ?m or more in grains is 20% or more, and the steel sheet for hot stamping has a microstructure in which an area ratio of pearlite is 10% to 90% and an ratio of ferrite is 10% to 90%.
    Type: Application
    Filed: May 10, 2022
    Publication date: June 6, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yuri TODA, Daisuke MAEDA, Tamaki SUZUKI, Ko SATAKE, Yuma ASADA