Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347346 | Image forming apparatus with improved efficiency of maintenance control | Tadafumi Shimizu, Yoshiaki Takano, Hiroyuki Ideyama, Manabu Kamitamari, Kadotaro Nishimori +4 more | 1994-09-13 |
| 5335048 | Efficient control system of image forming apparatus | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotari Nishimori +4 more | 1994-08-02 |
| 5303005 | Image forming apparatus with improved maintenance control | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotari Nishimori +4 more | 1994-04-12 |
| 5245389 | Image forming apparatus | Tsugihito Yoshiyama, Tadafumi Shimizu, Hiroyuki Ideyama, Masazumi Ito | 1993-09-14 |
| 5243382 | Image forming apparatus capable of efficient maintenance work | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotaro Nishimori +4 more | 1993-09-07 |
| 5194897 | Image forming apparatus with charge wire cleaners | Tsugihito Yoshiyama, Tadafumi Shimizu, Hiroyuki Ideyama, Masazumi Ito | 1993-03-16 |
| 4955317 | Image forming apparatus having a plurality of developing units each containing two-component developer | Naoyoshi Kinoshita | 1990-09-11 |
| 4928150 | Copy apparatus having plural copy sheet discharge trays for different sized copy sheets | — | 1990-05-22 |
| 4866474 | Copying apparatus capable of forming a composite image of an outline image and a normal image | Naoyoshi Kinoshita, Toshikazu Higashi, Yasuyuki Matsuuchi, Masazumi Ito | 1989-09-12 |