Inventor

KOKUFU Karin

JP11 patents

Patents

11 patents

US12104216B2Oct 1, 2024

Annealing separator for grain-oriented electrical steel sheet and method of producing grain-oriented electrical steel sheet

JFE STEEL CORP0 citations62

US12104257B2Oct 1, 2024

Electrical steel sheet with insulating film

JFE STEEL CORP0 citations62

US12033791B2Jul 9, 2024

Method for forming film and method for manufacturing electrical steel sheet with insulating film

JFE STEEL CORP0 citations62

US11981821B2May 14, 2024

Insulating coating treatment liquid, and grain-oriented electrical steel sheet having insulating coating and method for producing the same

JFE STEEL CORP0 citations62

US11926888B2Mar 12, 2024

Annealing separator for grain-oriented electrical steel sheet and method of producing grain-oriented electrical steel sheet

JFE STEEL CORP0 citations62

US12442053B2Oct 14, 2025

Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet

JFE STEEL CORP0 citations61

US11473176B2Oct 18, 2022

Oriented electrical steel sheet and method for producing same

JFE STEEL CORP0 citations61

US11923115B2Mar 5, 2024

Insulating coating-attached electrical steel sheet and manufacturing method therefor

JFE STEEL CORP0 citations57

US12312694B2May 27, 2025

Production method for treatment solution for forming insulating coating, production method for steel sheet having insulating coating, and production apparatus for treatment solution for forming insulating coating

JFE STEEL CORP0 citations51

US12234523B2Feb 25, 2025

Grain-oriented electrical steel sheet with insulating film and method for manufacturing the same

JFE STEEL CORP0 citations51

US12163232B2Dec 10, 2024

Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same

JFE STEEL CORP0 citations50