Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5005395 | Method of manufacturing electric welded pipes under hot conditions | Kuniharu Fujimoto | 1991-04-09 |
| 4945743 | Apparatus for manufacturing electric welded pipes under hot conditions | Kuniharu Fujimoto | 1990-08-07 |
| 4936723 | Method and apparatus for cutting off the beads of seam-welded pipes | Moriyuki Kakihara, Koji Nishimoto, Kuniharu Fujimoto | 1990-06-26 |