Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327273 | Method of treating a workpiece with electron beams and apparatus therefor | Yoshinori Karatsu, Takamitsu Nakazaki, Yoji Akutsu | 1982-04-27 |
| 4317022 | Electron beam welding machine | Yoshinori Karatsu, Takamitsu Nakazaki, Yoji Akutsu | 1982-02-23 |