Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5411997 | Mud material used for iron tap hole in blast furnace | Kengo Ohara, Hirao Omori, Osamu Michihiro, Makoto Suga, Kouji Shimomura +1 more | 1995-05-02 |
| 5158366 | Refractory monitoring temperature sensor and refractory erosion location measuring device | Nobuyuki Nagai, Akio Arai, Takashi Moriyama, Koji Shimomura, Yasuo Yoshida +5 more | 1992-10-27 |