Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620102 | Electron-impact type of ion source with double grid anode | Fumio Watanabe, Yoshiaki Hara, Masao Miyamoto, Yasuo Kusumoto | 1986-10-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620102 | Electron-impact type of ion source with double grid anode | Fumio Watanabe, Yoshiaki Hara, Masao Miyamoto, Yasuo Kusumoto | 1986-10-28 |