Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336138 | Permeation separation apparatus | Masaaki Sekino, Michimasa Kishimoto | 1982-06-22 |
| 4293419 | Hollow fiber membrane separation apparatus | Masaaki Sekino, Kenichi Chikanari | 1981-10-06 |