Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560931 | Self-propelled mobile pipeline inspection apparatus and method for inspecting pipelines | Shinichi Murakami | 1985-12-24 |
| 4477711 | Method and apparatus for plasma welding | Toshiaki Morichika, Shigenori Sone | 1984-10-16 |
| 4371775 | Method and apparatus for plasma welding | Toshiaki Morichika, Shigenori Sone | 1983-02-01 |