Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886631 | Cellulose ester hollow fiber membrane for plasma separation | Makoto Ohno, Isamu Yamamoto | 1989-12-12 |
| 4808312 | Cellulose ester hollow fiber membrane for plasma separation | Makoto Ohno, Isamu Yamamoto | 1989-02-28 |