Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922912 | Concentration method of aqueous acrylamide solution | Yoshihiko Kambara, Michiaki Umeno, Yoshikazu Uehara, Koichi Asao | 1999-07-13 |
| 5633408 | Process for preparing alkanolamines | Hiroyoshi Watanabe, Takashi Ohkawa, Kenji Suzuki | 1997-05-27 |