Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616783 | Purification process of polyhydroxycarboxylic acid | Yasunori Yoshida, Shoji Obuchi, Masahiro Ohta | 1997-04-01 |
| 5616806 | Process for preparing high-purity aniline | Teruyuki Nagata, Yoshitsugu Kono, Akihiro Tamaki, Takashi Kobayashi | 1997-04-01 |