Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841060 | Vapor-phase intramolecular dehydration reaction of alkanolamines | Youichi Hino, Yuuji Shimasaki | 1989-06-20 |
| 4841061 | Process for producing cyclic amines | Yuuji Shimasaki, Hideaki Tuneki, Kimio Ariyoshi | 1989-06-20 |
| 4833248 | Catalyst for vapor-phase intramolecular dehydration reaction of alkanolamines | Yuuji Shimasaki, Hideaki Tuneki, Youichi Hino, Hitoshi Yano | 1989-05-23 |
| 4814512 | Method for the production of p-methoxybenzaldehyde | Yoshiyuki Takahashi, Masatoshi Tsuchino, Noboru Saito | 1989-03-21 |