Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965064 | Pheophorbide derivatives | Michito Karasawa, Hirofumi Kawabe, Takuzo Otani, Katsuo Aizawa | 1990-10-23 |
| 4772681 | Porphyrin derivatives | Yozo Fukuda, Takuzo Otani, Haruo Yamada, Michikazu Sawada, Katsuo Aizawa +1 more | 1988-09-20 |