Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882340 | Benzofuran derivative and processes for preparing the same | Ikuo Iijima, Yutaka Saiga, Tohru Ishizuka, Kunio Nosaka | 1989-11-21 |
| 4829067 | Benzo-furan derivative | Ikuo Iijima, Yutaka Saiga, Tohru Ishizuka, Kunio Nosaka | 1989-05-09 |
| 4824833 | Benzoxazine derivatives | Ikuo Iijima, Kunihito Okumura, Masanori Inamasu | 1989-04-25 |