Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4963186 | Method for operating blast furnace by adding solid reducing agent | Masataka Shimizu, Ryuichi Hori, Yoshio Kimura, Mitsutoshi Isobe, Tsunao Kamijo +1 more | 1990-10-16 |