Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214100 | Process for preventing blackening of phthalic acid | Makoto Komatsu, Tazuo Ohta, Toru Tanaka | 1980-07-22 |
| 4211882 | Process for producing terephthalic acid | Makoto Komatsu, Tazuo Ohta, Toru Tanaka | 1980-07-08 |