Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829514 | Virus removal membrane | Ryo HAMAMOTO, Tomoko Hongo | 2020-11-10 |
| 7635513 | Heat resistant microporous film | Izumi Hoshuyama, Ichiro Koguma | 2009-12-22 |
| 7459085 | Microporous hydrophilic membrane | Ichiro Koguma | 2008-12-02 |
| 7140496 | Multilayer microporous membrane | Ichiro Koguma | 2006-11-28 |