Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886962 | Method for driving a photo-sensor by applying a pulse voltage to an auxiliary electrode during a non-read time | Yoshiyuki Osada, Katsumi Nakagawa | 1989-12-12 |
| 4886977 | Photoelectric converter provided with voltage dividing means | Yoshiyuki Osada, Katsumi Nakagawa, Katsunori Hatanaka, Toshihiro Saika, Noriyuki Kaifu | 1989-12-12 |
| 4845355 | Photoconductive type sensor and its driving method and apparatus | Katsumi Nakagawa, Soichiro Kawakami, Katsunori Hatanaka, Masaki Fukaya, Toshiyuki Komatsu | 1989-07-04 |