Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975348 | Image highlighting method | Kenji Tabuchi, Naoki Toyoshi, Hiroshi Okamoto, Shoichi Tsuge | 1990-12-04 |
| 4897331 | Reversal image forming method | Naoki Toyoshi, Hiroshi Okamoto, Kenji Tabuchi, Tomoaki Yokoyama | 1990-01-30 |
| 4891287 | Image editing method | Naoki Toyoshi, Hiroshi Okamoto, Kenji Tabuchi, Tomoaki Yokoyama | 1990-01-02 |
| 4890139 | Image forming apparatus | — | 1989-12-26 |
| 4847658 | Image forming apparatus and image forming method employed therefor | Naoki Toyoshi, Hiroshi Okamoto, Kenji Tabuchi, Mineyuki Sako | 1989-07-11 |
| 4845524 | Image forming method | Hiroshi Okamoto, Naoki Toyoshi, Kenji Tabuchi, Taisuke Nagao | 1989-07-04 |
| 4562129 | Method of forming monochromatic or dichromatic copy images | Susumu Tanaka | 1985-12-31 |
| 4539281 | Method of forming dichromatic copy images | Susumu Tanaka | 1985-09-03 |
| 4525447 | Image forming method using three component developer | Susumu Tanaka | 1985-06-25 |