Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914163 | Process for preparing heterocyclic copolymers | Wataru Minoshima, Takayuki Masuda, Chihiro Imai, Tetsuro Nakahama, Toshimitsu Sugawara +1 more | 1990-04-03 |
| 4684712 | Process for producing wholly aromatic polyesters | Ryuzo Ueno, Yasunori Nakamura | 1987-08-04 |
| 4633024 | Process for producing aromatic hydroxy compound | Ryuzo Ueno, Yoshiyuki Naito, Mitsuyuki Kishimoto | 1986-12-30 |
| 4436670 | Process for producing hydroxybenzonitriles | Ryuzo Ueno, Keiji Kawata, Yoshiyuki Naito | 1984-03-13 |