Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4266970 | Method for blowing gas from below into molten steel in refining vessel | Shoji Iwaoka, Hiroyuki Kaito, Susumu Ushigome, Yoshiaki Watanabe, Nobuyuki Mimura | 1981-05-12 |