Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5817843 | Quinizarin compound, method for production thereof, and use therefor | Kiyoshi Masuda, Osamu Kaieda | 1998-10-06 |
| 5608091 | Quinizarin compound, method for production thereof, and use therefor | Kiyoshi Masuda, Osamu Kaieda | 1997-03-04 |