Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814305 | Method for regeneration of oxidation catalyst | Masaaki Kato | 1989-03-21 |
| 4469810 | Process for the calcination of phosphorus-molybdenum catalyst | Masaaki Kato, Toshiharu Nakano, Junji Furuse | 1984-09-04 |
| 4337215 | Process for purifying 2-acrylamido-2-methylpropanesulfonic acid | Shunichi Doi | 1982-06-29 |
| 4219498 | Process for preparing highly pure-2-acrylamido-2-methylpropanesulfonic acid | Shunichi Doi | 1980-08-26 |