Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747946 | Tubular membrane ultrafiltration module | Norio Ikeyama, Noriaki Yoshioka, Hisashi Ichinose | 1988-05-31 |
| 4707261 | Tubular membrane ultrafiltration module | Norio Ikeyama, Noriaki Yoshioka, Hisashi Ichinose | 1987-11-17 |
| 4427200 | Seal structure of end part of liquid separation tube | Norio Ikeyama, Nobuo Sotoma | 1984-01-24 |