Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824952 | Isoquinoline derivative | Tsuneji Suzuki, Kunio Sannohe, Toshihiko Ito, Masahiko Maruyama, Joji Kamiya +2 more | 1989-04-25 |
| 4782154 | Isoquinoline derivatives | Tatsuo Kaiho, Seitaro Kajiya, Kengo Otsuka, Masahiko Maruyama | 1988-11-01 |
| 4639521 | Isoquinoline derivatives | Kunio Sannohe, Kengo Otsuka, Toshohiko Ito, Masahiko Maruyama, Takafumi Kitano | 1987-01-27 |