Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6172228 | Process for producing piperazinesulfonamide derivatives and salts thereof | Kenichi Kashima, Yasuhiko Sakamoto, Yoichiro Ohta, Kenji Kawanishi, Yasuko Takemura | 2001-01-09 |
| 5716950 | Diazacycloalkanealkylsulfonamide derivatives | Kenichi Kashima, Yoshinobu Akimoto, Yasuhiko Sakamoto, Hirohiko Sakamoto, Kayo Yokode +3 more | 1998-02-10 |