Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698532 | Piercing apparatus | Manabu Gotou, Keisuke Morimitsu, Hiromi Kawakami, Tuneo Iwasaki, Kazuo Haga +2 more | 2004-03-02 |
| 6601655 | Piercing apparatus | Manabu Gotou, Keisuke Morimitsu, Hiromi Kawakami, Tuneo Iwasaki, Kazuo Haga +2 more | 2003-08-05 |
| 4892293 | Brick casting method of making a stave cooler | Yoichiro Kato, Yasuhide Koga, Tsuguro Takashima | 1990-01-09 |