Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5235155 | Plasma cutting device | Osamu Yamada, Kunio Kohsaka | 1993-08-10 |
| 5091625 | Plasma arc cutting device having metal deposition removal function and method for removing deposition from nozzle of the plasma arc cutting device | Masahiro Kohda, Osamu Yamada | 1992-02-25 |
| 5043554 | Plasma-arc cutting apparatus having means for deflecting plasma arc | Kunio Kohsaka, Osamu Yamada | 1991-08-27 |
| 4983807 | Method and apparatus for plasma cutting a workpiece | Osamu Yamada, Kunio Kohsaka | 1991-01-08 |
| 4873756 | Machine tool | Noboru Hirose | 1989-10-17 |