Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908567 | Electrode for plasma arc torch | Naoya Tsurumaki | 1999-06-01 |
| 5591356 | Plasma torch having cylindrical velocity reduction space between electrode end and nozzle orifice | Naoya Tsurumaki | 1997-01-07 |
| 5569397 | Plasma torch | Naoya Tsurumaki | 1996-10-29 |
| 5177338 | Cathode structure of plasma-arc torch | — | 1993-01-05 |