Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833054 | Electrophotographic photoreceptor having a bisazo compound | Yutaka Akasaki, Akihiko Tokita;, Hidemi Suto | 1989-05-23 |
| 4833263 | Novel electron-accepting compound and method for preparing the same | Yutaka Akasaki, Hiroyuki Tanaka, Katsumi Nukada, Hidemi Sudo | 1989-05-23 |