Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869823 | Rotary drum type solid-liquid separation apparatus | Mitsunobu Otani, Takashi Nagayama, Tsuneo Kouzuki | 1989-09-26 |
| 4707260 | Solid liquid separation device | Takashi Nagayama, Mitsunobu Otani | 1987-11-17 |