Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822489 | Aromatic polysulfone type resin hollow fiber membrane and a process for producing the same | Takashi Nohmi | 1989-04-18 |
| 4267053 | Inline intravenous final filter unit | Fusakazu Hayano, Kazuo Toyomoto | 1981-05-12 |
| 4208508 | Semipermeable membranes of polyaryl ether sulfones | Fusakazu Hayano, Kenji Ito | 1980-06-17 |
| 4181694 | Method for producing hollow fibers of acrylonitrile polymers for ultrafilter | Masatsugu Yoshino, Hitoshi Sawabu, Tsugio Konno | 1980-01-01 |