Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4673794 | Electron beam welding method | Hirosada Irie | 1987-06-16 |
| 4309589 | Method and apparatus for electron beam welding | Tatsuya Hashimoto, Michio Inagaki, Hirosada Irie | 1982-01-05 |