Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874697 | Novel Host e. coli and use thereof | Keijiro Sugimura, Hounai Shirasawa | 1989-10-17 |
| 4828990 | Method for purifying an interferon | Naoki HIGASHI, Masafumi Tsujimoto, Hounai Shirasawa, Tsutomu Okada, Kazumori Yamamoto +2 more | 1989-05-09 |