Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4787981 | Process for purification of crude glyceride oil compositions | Seiichi Tanahashi, Kaoru Nagano, Masaaki Kasai, Fujihiko Tsubone, Akio Iwama +2 more | 1988-11-29 |
| 4618534 | Composite membrane and process for producing the same | Akio Iwama, Yoshitaka Kazuse | 1986-10-21 |