Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863822 | Electrophotographic photoconductor comprising charge generating and transport layers containing adjuvants | Kiyoshi Taniguchi, Katsuichi Ohta, Kayoko Yokoyama, Minoru Umeda | 1989-09-05 |
| 4830942 | Electrophotographic photoconductor | Michio Kimura, Masafumi Ohta, Mitsuru Hashimoto | 1989-05-16 |
| 4822705 | Electrophotographic photoconductor with layer preventing charge injection | Kiyoshi Taniguchi, Katsuichi Ohta, Minoru Umeda, Kayoko Yokoyama | 1989-04-18 |