Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5066397 | Hollow fiber membranes with fusion-bonded end portions | Yoshihiko Muto, Kohei Watanabe, Koichi Yasukata | 1991-11-19 |
| 4980060 | Hollow fiber membranes with fusion-bonded end portions | Yoshihiko Muto, Kohei Watanabe, Koichi Yasukata | 1990-12-25 |