Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944881 | Liquid separation membrane for pervaporation | Yoshio Sato, Hisashi Ogawara, Syuzo Yamashita | 1990-07-31 |
| 4808313 | Liquid separation membrane for pervaporation | Yoshio Sato, Hisashi Ogawara, Syuzo Yamashita | 1989-02-28 |