Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149487 | Prereduction furnace of a smelting reduction facility of iron ore | Masahiro Matsuo, Genji Kanatani, Tatsurou Ariyama, Jirou Mase, Yoshiyuki Kitano +2 more | 1992-09-22 |
| 5129630 | Prereduction furnace of a smelting reduction facility of iron ore | Tatsuro Ariyama, Jiro Mase, Yoshiyuki Kitano, Sakae Arakawa, Haruhito Tsuboi +2 more | 1992-07-14 |
| 4935054 | Method of charging chromium ores in a smelting reduction | Haruyoshi Tanabe, Masahiro Kawakami, Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue | 1990-06-19 |