Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347298 | Exposure control device for use in electrophotographic printing apparatus | — | 1994-09-13 |
| 5155527 | Changeable process cartridge used in an image forming apparatus having a useable life determining means | Goro Oda | 1992-10-13 |
| 5148221 | Image forming apparatus with toner density control based on the medium supplied | — | 1992-09-15 |
| 4777554 | Method and apparatus for detecting charger abnormality | — | 1988-10-11 |
| 4668978 | Thermal transfer color image forming apparatus with image color and image color density control functions | — | 1987-05-26 |
| 4651222 | Picture image forming apparatus | — | 1987-03-17 |
| 4630128 | Color image forming apparatus with interruption control | — | 1986-12-16 |
| 4589035 | Multiple copy image forming apparatus and method | Eiichi Yamanishi, Kenichi Oono, Kenji Futaki, Junji Watanabe | 1986-05-13 |
| 4443712 | Switch device for connecting AC power source to load | — | 1984-04-17 |