Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4639117 | Recording image density control method for electrophotography | Kazuo Murai | 1987-01-27 |
| 4551005 | Method of forming images of sensor patterns in effecting image density control of electrophotographic copying apparatus | — | 1985-11-05 |
| 4522481 | Toner supply control method for electrophotographic copier | Chikara Imai | 1985-06-11 |
| 4279498 | Electrostatographic copying apparatus with automatic toner density control | Tadahiro Eda, Susumu Tatsumi, Chikara Imai | 1981-07-21 |