Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981585 | Cleaning blade | Mitsuru Tokuyama, Hiroo Naoi, Kiyofumi Morimoto, Kazuma Hinoue | 2011-07-19 |
| 7860415 | Image forming apparatus with toner concentration sensor | Mitsuru Tokuyama, Hiroo Naoi, Kiyofumi Morimoto, Kazuma Hinoue | 2010-12-28 |
| 7561831 | Image forming apparatus, method of controlling same, program for controlling, and recording medium for program | Hiroo Naoi, Mitsuru Tokuyama, Hiroshi Kubota | 2009-07-14 |
| 7430381 | Developing device with corrected toner density sensing, control method, and computer-readable storage medium | Mitsuru Tokuyama, Hiroo Naoi, Kiyofumi Morimoto | 2008-09-30 |
| 6512896 | Image forming apparatus with detachable mounting process cartridge | Masato Asanuma, Hiroo Naoi, Syouichi Fujita, Hirofumi Sakita, Hideji Saiko | 2003-01-28 |
| 6311027 | Image-forming apparatus which forms images by using a developer | Hirofumi Sakita, Syouichi Fujita, Hideji Saiko, Mitsuru Tokuyama, Masatsugu Nakamura +1 more | 2001-10-30 |
| 6226490 | Toner replenishing apparatus and image forming apparatus equipped with same | Syouichi Fujita, Itaru Kawabata, Hideji Saiko, Hirofumi Sakita, Masato Asanuma +2 more | 2001-05-01 |
| 6157807 | Cleaning device with electrically biased conveying members for collecting, separating and reusing developer | Masato Asanuma, Kouji Shinkawa, Hiroo Naoi, Syouichi Fujita | 2000-12-05 |
| 6070035 | Image forming apparatus having developer supply device | Syouichi Fujita, Eiji Sato, Hirofumi Sakita, Masato Asanuma, Itaru Kawabata | 2000-05-30 |
| 5983055 | Photosensitive element for electrophotography | Takahiro Bito, Syouichi Fujita, Teruhiko Noguchi, Yukihisa Imaue, Tatsuya Itou +3 more | 1999-11-09 |