Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5557009 | Process for preparing an aqueous slurry of terephthalic acid | Yoshiaki Izumisawa, Takayuki Isogai | 1996-09-17 |
| 5420344 | Process for producing highly pure terephthalic acid | Yoshiaki Izumisawa, Tsukasa Kawahara, Takehiko Baba, Yoshio Ishinaga, Katsuhiko Fukui +1 more | 1995-05-30 |