Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966992 | Process for production of aromatic hydroxycarboxylic acid | Ryuzo Ueno, Yoshiyasu Masada, Yoshihiko Kuwae | 1990-10-30 |
| 4436670 | Process for producing hydroxybenzonitriles | Ryuzo Ueno, Kazuyuki Sakota, Yoshiyuki Naito | 1984-03-13 |