Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359578 | Naphthyridine derivatives and salts thereof useful as antibacterial agents | Yoshiyuki Takase, Yoshiro Nishimura | 1982-11-16 |
| 4352803 | Novel naphthyridine derivatives, intermediates thereof, processes for preparation thereof, and use thereof | Yoshiyuki Takase, Yoshiro Nishimura | 1982-10-05 |
| 4341784 | Naphthyridine derivatives | Yoshiyuki Takase, Yoshiro Nishimura | 1982-07-27 |
| 4309572 | Call processing system with an operator assistance in a telephone switching system | Hiromichi Mori, Tatsuo Maruyama, Yoshikazu Ikeda | 1982-01-05 |