Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328789 | Electrophotographic organic photoconductor | Masashi Tanaka | 1994-07-12 |
| 5324610 | Electrophotographic organic photosensitive material with diphenoquinone derivative | Masashi Tanaka, Tadashi Sakuma, Toshiyuki Fukami | 1994-06-28 |