Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616188 | Method of producing molten aluminum-killed steel for thin steel sheet | Seiji Nabeshima, Yoichi Ito, Kenichi Sorimachi | 1997-04-01 |
| 5609199 | Method of manufacturing steel containing Ca | Seiko Nara, Kenichi Sorimachi | 1997-03-11 |