Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10232460 | Center pipe for plasma torch, contact piece, electrode, and plasma torch | Yoshihiro Yamaguchi, Keita Kondo, Katsuo Saio | 2019-03-19 |
| 10189110 | Plasma cutting method and plasma cutting device | Yoshihiro Yamaguchi, Satoshi Ohnishi, Katsuo Saio, Kazunori Tsunekawa | 2019-01-29 |