Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831189 | Process for producing aromatic dicarboxylic acids | Yoshinori Saito, Shinichi Araki, Naoji Kurata | 1989-05-16 |
| 4814462 | Polyoxyalkylene carbozole adduct | Naoji Kurata, Keiji Kobayashi, Atsushi Kawano | 1989-03-21 |