Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436243 | Process for recovering N-vinyl-2-pyrrolidone | Yoshinari Yamaguchi, Hitoshi Yano, Yuuji Shimasaki | 2002-08-20 |
| 5847213 | Process for production of tertiary amine compound | Yuuji Shimasaki | 1998-12-08 |
| 5844112 | Method for the preparation of (meth)acrylonitriles | Nobuji Kishimoto, Isao Nakamura, Etsushige Matsunami | 1998-12-01 |
| 5773669 | Process for production of vinyl ether | Yuuji Shimasaki | 1998-06-30 |
| 5700946 | Process for production of N-vinyl compound | Yuuji Shimasaki, Hideyuki Kanbe | 1997-12-23 |