Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4251269 | Method for controlling steel making process under reduced pressures | Fumio Hoshi, Akira Fujisawa | 1981-02-17 |
| 4251270 | Method of controlling steel making process under atmospheric pressure | Fumio Hoshi, Akira Fujisawa | 1981-02-17 |