Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12172208 | Operation method of ladle refining treatment | Kazuaki Hirakawa, Koichiro Hirata, Isao Shimoda, Takashi Yamauchi | 2024-12-24 |
| 10092949 | Method of manufacturing round steel billet | Tatsuro Katsumura, Yoichi Ito | 2018-10-09 |