Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883758 | Biologically pure culture of the microorganism Streptomycas tropolofaciens used for producing 3,7-dihydroxytropolone and antitumor use | Masaru Ohbayashi, Koji Tomita, Koko Sugawara, Masataka Konishi | 1989-11-28 |
| 4833079 | Process for producing 3,7-dihydroxytropolone and antitumor use thereof | Masaru Ohbayashi, Koji Tomita, Koko Sugawara, Masataka Konishi | 1989-05-23 |