Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5753673 | Quinolinecarboxylic acid derivatives | Yutaka Ohuchi, Masaji Suzuki, Hajime Asanuma, Katsuo Hatayama | 1998-05-19 |
| 5733917 | Heterocyclic compound | Yutaka Ohuchi, Masaji Suzuki, Hajime Asanuma, Katsuo Hatayama, Yoshihiko Isobe +2 more | 1998-03-31 |
| 5571820 | Heterocyclic compound | Yutaka Ohuchi, Masaji Suzuki, Hajime Asanuma, Katsuo Hatayama, Yoshihiko Isobe +2 more | 1996-11-05 |
| 5347012 | Naphthothiopyranone derivatives | Tatsuhiko Sano, Keiko Saijo, Yoshimoto Nakashima, Katsuo Hatayama | 1994-09-13 |
| 5089654 | Chalcone derivatives | Keiko Saijo, Tohru Matsunaga, Yoshimoto Nakashima, Katsuo Hatayama | 1992-02-18 |
| 4980474 | Apovincaminic acid derivatives | Masatoshi Hayashi, Yoshimoto Nakashima, Katsuo Hatayama | 1990-12-25 |
| 4883876 | Acylated vincaminic acid derivatives | Shin-ichi Nakatsuka, Masatoshi Hayashi, Yoshimoto Nakashima, Katsuo Hatayama, Hiroaki Araki | 1989-11-28 |