Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4632894 | Photoconductive device having photoconductive layer containing hydroxyl radicals | Tadashi Tonegawa, Shoichi Nagata, Masatsugu Nakamura | 1986-12-30 |
| 4416536 | Light memory removing system in an electrophotographic copying machine | Ikuo Itoh, Shunju Anzai | 1983-11-22 |