Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258315 | Furnace body structural member for metallurgical shaft furnace | Tsuneo Araki, Kenichi Fukagawa, Atsushi Sakai | 2001-07-10 |
| 6090342 | Stave for metallurgical furnace | Bungo Iino, Kazumasa Wakimoto, Mamoru Tsukamoto | 2000-07-18 |
| 5698010 | Scrap melting method | Tatsuro Ariyama, Takanori Inoguchi, Masahiro Matsuura, Hidetoshi Noda, Noboru Sakamoto | 1997-12-16 |
| 5466720 | Method of producing dimethyl ether | Kaoru Fujimoto, Tsutomu Shikada, Yojiro Yamaoka | 1995-11-14 |
| 5389689 | Method of producing dimethyl ether | Kaoru Fujimoto, Tsutomu Shikada, Yojiro Yamaoka | 1995-02-14 |