Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065190 | Toner density control method | Kiyohari Nakagama | 1991-11-12 |
| 4963940 | Toner cartridge for a copying apparatus | Mitsugu Nemoto, Atsuo Ohmura, Jun-ichi Koiso | 1990-10-16 |
| 4951093 | Developing unit for an electrostatic recording apparatus | Hiroyuki Honda, Kazuyuki Tanaka, Noboru Koizumi | 1990-08-21 |
| 4941022 | Toner recovery device | Atsuo Ohmura, Jun-ichi Koiso, Mitsugu Nemoto | 1990-07-10 |