Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630010 | Method of producing metallic iron | Yasuhiro Tanigaki, Shoichi Kikuchi, Osamu Tsuge, Isao Kobayashi, Keisuke Honda +2 more | 2003-10-07 |
| 6592649 | Method of producing iron nuggets | Shoichi Kikuchi, Yasuhiro Tanigaki, Koji Tokuda, Osamu Tsuchiya | 2003-07-15 |
| 6569223 | Method of manufacturing molten metal iron | Yasuhiro Tanigaki, Osamu Tsuge, Isao Kobayashi, Keisuke Honda, Koji Tokuda +1 more | 2003-05-27 |
| 6506231 | Method and apparatus for making metallic iron | Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi +7 more | 2003-01-14 |