Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4477711 | Method and apparatus for plasma welding | Takao Mihara, Toshiaki Morichika | 1984-10-16 |
| 4371775 | Method and apparatus for plasma welding | Takao Mihara, Toshiaki Morichika | 1983-02-01 |