Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8778183 | Filtering apparatus | Koichi Nakagawa, Daisuke Nii, Daisuke Fujieda | 2014-07-15 |
| 7071130 | Laminated material of segregating membrane and segregating membrane supporting material, and its method of manufacture | Yoshitsugu Hama, Hideo Naka, Akihiro Okubo | 2006-07-04 |
| 6919026 | Semipermeable membrane support and process of preparation thereof | Yoshitsugu Hama, Akihiro Okubo | 2005-07-19 |