Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298531 | Process for the preparation of polyimide foam | Nobuyuki Watanabe | 1994-03-29 |
| 5273657 | Process for preparing modified porous membrane | Naoki Nakashima, Tadaaki Miyano, Yoshihide Ozawa | 1993-12-28 |