Inventor
SAWANISHI CHIKAUMI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “SAWANISHI CHIKAUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JFE STEEL CORP
22 patentsUS10625368B2Apr 21, 2020
Resistance spot welding method and method for manufacturing resistance spot welded joint
JFE STEEL CORP8 citations84
US11293074B2Apr 5, 2022
Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same
JFE STEEL CORP4 citations73
US10773334B2Sep 15, 2020
Resistance spot welding method
JFE STEEL CORP3 citations73
US10625365B2Apr 21, 2020
Resistance spot welding method
JFE STEEL CORP3 citations72
US10328518B2Jun 25, 2019
Resistance spot welding method
JFE STEEL CORP5 citations72
US10081074B2Sep 25, 2018
Resistance spot welding device and resistance spot welding method
JFE STEEL CORP4 citations72
US9895764B2Feb 20, 2018
Resistance spot welding system
JFE STEEL CORP3 citations72
US9821404B2Nov 21, 2017
Resistance spot welding method
JFE STEEL CORP2 citations72
US10946470B2Mar 16, 2021
Resistance spot welding method and welded member production method
JFE STEEL CORP1 citations62
US10900096B2Jan 26, 2021
Steel sheet and plated steel sheet, method for producing hot-rolled steel sheet, method for producing cold-rolled full-hard steel sheet, method for producing heat-treated sheet, method for producing steel sheet, and method for producing plated steel sheet
JFE STEEL CORP0 citations62
US12151299B2Nov 26, 2024
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations52
US11958123B2Apr 16, 2024
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations52
US11911837B2Feb 27, 2024
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations52
US11904404B2Feb 20, 2024
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations52
US11623298B2Apr 11, 2023
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations52
US11298773B2Apr 12, 2022
Resistance spot welding method
JFE STEEL CORP0 citations52
US11065712B2Jul 20, 2021
Resistance spot welding method
JFE STEEL CORP0 citations52
US12447549B2Oct 21, 2025
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations51
US12440917B2Oct 14, 2025
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations51
US12358067B2Jul 15, 2025
Resistance spot welding method and weld member production method
JFE STEEL CORP0 citations51
US11504796B2Nov 22, 2022
Resistance spot welding method
JFE STEEL CORP0 citations51
US10835986B2Nov 17, 2020
Resistance spot welding method and welded member production method
JFE STEEL CORP0 citations41