Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841060 | Vapor-phase intramolecular dehydration reaction of alkanolamines | Youichi Hino, Michio Ueshima | 1989-06-20 |
| 4841061 | Process for producing cyclic amines | Michio Ueshima, Hideaki Tuneki, Kimio Ariyoshi | 1989-06-20 |
| 4833248 | Catalyst for vapor-phase intramolecular dehydration reaction of alkanolamines | Hideaki Tuneki, Youichi Hino, Hitoshi Yano, Michio Ueshima | 1989-05-23 |