Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607934 | Piperazine derivatives and salts thereof | Hitoshi Tone, Masatoshi Morisue, Katsumi Tamura, Yoshimasa Nakano | 1997-03-04 |
| 5459142 | Pyrazinyl and piperazinyl substituted pyrazine compounds | Hitoshi Tone, Seiji Sato, Katsumi Tamura, Hideaki Sato, Yoshimasa Nakano | 1995-10-17 |