Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347346 | Image forming apparatus with improved efficiency of maintenance control | Tadafumi Shimizu, Yoshiaki Takano, Hiroyuki Ideyama, Kadotaro Nishimori, Yoshihiko Hatta +4 more | 1994-09-13 |
| 5335048 | Efficient control system of image forming apparatus | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Kadotari Nishimori, Yoshihiko Hatta +4 more | 1994-08-02 |
| 5303005 | Image forming apparatus with improved maintenance control | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Kadotari Nishimori, Yoshihiko Hatta +4 more | 1994-04-12 |
| 5243382 | Image forming apparatus capable of efficient maintenance work | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Kadotaro Nishimori, Yoshihiko Hatta +4 more | 1993-09-07 |
| 4896184 | Image forming apparatus with a developing device | Yoshiaki Takano | 1990-01-23 |
| 4839697 | Image forming apparatus | Hiroyoshi Hayama | 1989-06-13 |