Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5834147 | Photosensitive member for electrophotography | Suguru Nagae, Kazuko Wakita, Toshio Kobayashi, Yoshimi Sugimoto, Sei Tsunoda +1 more | 1998-11-10 |
| 5665503 | Positive charge type organic photoconductive layer | Sei Tsunoda, Toshio Kobayashi, Shigeo Tsuda, Hiromi Yamada | 1997-09-09 |