Inventor
OKAI KAZUHISA
JP10 patents
⚠️ This page may combine multiple inventors who share the name “OKAI KAZUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JFE STEEL CORP
9 patentsUS11795526B2Oct 24, 2023
Surface-treated steel sheet
JFE STEEL CORP0 citations62
US7842400B2Nov 30, 2010
Surface-treated steel sheet and method for manufacturing the same
JFE STEEL CORP3 citations62
US7348068B2Mar 25, 2008
Surface-treated steel sheet excellent in corrosion resistance, conductivity, and coating appearance
JFE STEEL CORP6 citations62
US8012599B2Sep 6, 2011
Surface-treated steel sheet with excellent corrosion resistance and method for manufacturing same
JFE STEEL CORP2 citations61
US7517591B2Apr 14, 2009
Highly corrosion-resistant surface-treated steel sheet and method for producing same
JFE STEEL CORP5 citations61
US7875363B2Jan 25, 2011
Surface-treated steel sheet
JFE STEEL CORP3 citations57
US11618938B2Apr 4, 2023
Steel sheet having a hot-dip Zn—Al—Mg-based coating film excellent in terms of surface appearance and method of manufacturing the same
JFE STEEL CORP0 citations51
US11174556B2Nov 16, 2021
Surface-treatment solution for zinc or zinc alloy coated steel sheet, method of producing zinc or zinc alloy coated steel sheet with surface-coating layer, and zinc or zinc alloy coated steel sheet with surface-coating layer
JFE STEEL CORP0 citations47
US12378673B2Aug 5, 2025
Surface-treated steel sheet for organic resin coating and method of producing same, and organic resin coated steel sheet and method of producing same
JFE STEEL CORP0 citations39