Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693120 | Production method for low carbon molten steel using vacuum degassing and decarburization treatment | Yasuo Obana, Koichi Endoh, Makoto Moriguchi, Shigenori Yagura, Fumio Hayashi | 1997-12-02 |