Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922873 | Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert-butyl-2-piperazinecarboxamide | Sadao Asahi, Hideki Kuranishi | 1999-07-13 |
| 5734055 | Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert-butyl-2-piperazinecarboxamide | Sadao Asahi, Hideki Kuranishi, Takashi Kurahashi | 1998-03-31 |
| 5668281 | Process for preparing tertiary amine-N-oxide | Shinkichi Shimizu, Hideki Kuranishi | 1997-09-16 |
| 5496949 | Pyrazine derivatives | Ichiro Toida, Setsuko Yamamoto, Toshikazu Ura | 1996-03-05 |
| 4182880 | 1,8-Naphthyridine compounds and process for preparing the same | Haruhito Akimoto | 1980-01-08 |