Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985092 | Steel having good wear resistance | Tadahiro KOIKE, Shinji Kato, Yorishige Maeda, Yoshio Fuwa, Shigetoshi Sugimoto +2 more | 1991-01-15 |
| 4966751 | Steel having good wear resistance | Tadahiro KOIKE, Shinji Kato, Yorishige Maeda, Yoshio Fuwa, Shigetoshi Sugimoto +2 more | 1990-10-30 |