Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057535 | Derivatives of an aminoketone | Akira Shiozawa, Giichi Izumi, Katsuhiko Sakitama, Kazuhisa Narita, Shuji Kurashige +4 more | 1991-10-15 |
| 4308273 | 1,6-Naphthyridine derivatives, and antidinic and cerebral circulation improver containing such derivatives | Hiroshi Yamanaka, Takao Sakamoto, Akira Shiozawa, Yuh-ichiro Ichikawa, Hiroshi Miyazaki | 1981-12-29 |