Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959140 | Process for producing aromatic carboxylic acid | — | 1999-09-28 |
| 5132450 | Process for producing high purity isophthalic acid | Kazuo Tanaka, Terumasa Yoshida, Ichihei Motoyama, Tazuo Ohta, Toshiaki Abe | 1992-07-21 |