Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886846 | Aromatic diolefinic compounds, aromatic diethyl compounds and electrophotographic photoconductors comprising one aromatic diethyl compound | Tomoyuki Shimada, Mitsuru Hashimoto | 1989-12-12 |
| 4859556 | Electrophotographic photoconductor containing stilbene compound | — | 1989-08-22 |
| 4830943 | Bisazo compounds and electrophotographic photoconductors comprising the bisazo compounds | Tomoyuki Shimada | 1989-05-16 |