Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294933 | Process for the production of an ion exchange membrane | Kunio Kihara, Hideo Toda, Eiki Yasukawa, Toshiaki Ishibashi | 1981-10-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294933 | Process for the production of an ion exchange membrane | Kunio Kihara, Hideo Toda, Eiki Yasukawa, Toshiaki Ishibashi | 1981-10-13 |