Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5089747 | Electron beam excitation ion source | Akira Koshiishi, Kohei Kawamura | 1992-02-18 |
| 5028791 | Electron beam excitation ion source | Akira Koshiishi, Kohei Kawamura, Masahiko Matsudo | 1991-07-02 |
| 4749912 | Ion-producing apparatus | Tamio Hara, Manabu Hamagaki, Yoshinobu Aoyagi, Susumu Namba, Nobuo Ishii +1 more | 1988-06-07 |