Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942854 | Electron-beam excited plasma generator with side orifices in the discharge chamber | Makoto Ryoji, Yukitaka Mori, Takeshi Hasegawa, Masahito Ban | 1999-08-24 |
| 5326981 | Electron beam excited ion irradiation apparatus | Tamio Hara, Manabu Hamagaki, Katsunobu Aoyagi, Takeshi Yamada, Makoto Ryoji +1 more | 1994-07-05 |