Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707269 | Method for separating an oil from an oil-containing liquid | Toshiyuki Kondou, Hisaharu Takeuchi, Yuzo Ikeda | 1987-11-17 |
| 4663222 | Non-woven fabric, and oil water separating filter and oil-water separating method | Toshiyuki Kondou, Hisaharu Takeuchi, Yuzo Ikeda | 1987-05-05 |