Hayato Takeyama

2 Patents

• US122345562025

  Cold Rolled Steel Sheet for Zirconium-based Chemical Conversion Treatment, Method for Producing Same, Zirconium-based Chemical Conversion-treated Steel Sheet, and Method for Producing Same

  JFE STEEL CORPORATION

  0 cites
• US121166482024

  Cold-rolled Steel Sheet and Method for Manufacturing the Same, and Cold-rolled Steel Sheet for Annealing

  JFE Steel Corporation

  0 cites