Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493714 | Ultrathin film, process for production thereof, and use thereof for concentrating a specified gas in a gaseous mixture | Fumio Ueda, Eiichi Hashimoto, Takeyoshi Yamada | 1985-01-15 |
| 4265745 | Permselective membrane | Takeyuki Kawaguchi, Yutaka Taketani, Yuzuru Hayashi, Tomoyoshi Ono | 1981-05-05 |