Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684187 | Process for producing highly pure terephthalic acid | Fumio Ohkoshi, Masato Inary | 1997-11-04 |
| 5679847 | Process for producing terephthalic acid | Fumio Ohkoshi, Masato Inary | 1997-10-21 |