Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4272287 | Process for refining molten steel containing chromium | Shuzo Kitagawa, Hiromi Hata | 1981-06-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4272287 | Process for refining molten steel containing chromium | Shuzo Kitagawa, Hiromi Hata | 1981-06-09 |