Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4400455 | Layered organic electrophotographic photoconductor element comprising bisazo generating and hydrazone transport layers | Mitsuru Hashimoto, Kiyoshi Sakai, Akio Kojima | 1983-08-23 |