Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286101 | Process for preparing terephthalic acid | Sigeki Harada | 1981-08-25 |
| 4201872 | Process for preparing purified terephthalic acid | Tsuneo Kimura | 1980-05-06 |
| 4197412 | Process for preparing terephthalic acid | Tsuneo Kimura, Yoshiaki Izumisawa | 1980-04-08 |