Inventor
KITSUYA SHIGEKI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KITSUYA SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JFE STEEL CORP
10 patentsUS10000833B2Jun 19, 2018
Thick, tough, high tensile strength steel plate and production method therefor
JFE STEEL CORP4 citations72
US9945015B2Apr 17, 2018
High-tensile steel plate giving welding heat-affected zone with excellent low-temperature toughness, and process for producing same
JFE STEEL CORP3 citations71
US10351926B2Jul 16, 2019
High toughness and high tensile strength thick steel plate with excellent material homogeneity and production method for same
JFE STEEL CORP2 citations69
US12180572B2Dec 31, 2024
Wear-resistant steel plate and method for producing same
JFE STEEL CORP0 citations62
US10358688B2Jul 23, 2019
Steel plate and method of producing same
JFE STEEL CORP1 citations61
US10443110B2Oct 15, 2019
High toughness and high tensile strength thick steel plate and production method therefor
JFE STEEL CORP1 citations59
US11819909B2Nov 21, 2023
Method for manufacturing high-manganese steel cast slab and method for manufacturing high-manganese steel slab or steel sheet
JFE STEEL CORP0 citations50
US12473607B2Nov 18, 2025
Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate
JFE STEEL CORP0 citations48
US12428698B2Sep 30, 2025
Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate
JFE STEEL CORP0 citations48
US11959157B2Apr 16, 2024
High-Mn steel and method of producing same
JFE STEEL CORP0 citations48