Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057218 | Porous membrane and production process thereof | Toshinobu Koshoji, Kiyonobu Okamura, Kunio Misoo, Osamu Nishimura | 1991-10-15 |
| 5043216 | Porous polyethylene fibers | Kunio Misoo, Kiyonobu Okamura | 1991-08-27 |