Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6211622 | Plasma processing equipment | Makoto Ryoji, Takeshi Hasegawa, Masahito Ban | 2001-04-03 |
| 5942854 | Electron-beam excited plasma generator with side orifices in the discharge chamber | Makoto Ryoji, Masakuni Tokai, Takeshi Hasegawa, Masahito Ban | 1999-08-24 |