Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10583430 | Ion exchange membrane and production process therefor | Tomoaki Takahashi, Hiroshi Miyazawa, Nobuyuki Tanaka, Kazuo Mizuguchi, Kenji Fukuta | 2020-03-10 |
| 9162185 | Ion-exchange membrane | Kazuo Mizuguchi, Kazunori Nishio, Toshio Aritomi | 2015-10-20 |
| 5221455 | Bipolar membrane and method for its production | Fumio Hanada, Koki Hirayama, Shinsuke Tanaka | 1993-06-22 |
| 4923611 | Novel anion-exchange membrane | Fumio Hanada, Koki Hirayama | 1990-05-08 |