Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
YK

Yoshihiko KOYANAGI

DC Daido Steel Co.: 1 patents #1 of 11Top 10%
Overall (2025): #160,708 of 469,880Top 35%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12188113 Austenitic stainless steel and hydrogen resistant member Nobuyuki Takahashi, Daisuke Kudo, Tomohiro Ando 2025-01-07