Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315362 | Multicolor developing device including expansion/contraction means for permitting a developing mechanism to move relative to its associated toner container | Hideki Kita, Toshimitsu Takeuchi | 1994-05-24 |
| 5300383 | Method and toner for full color development | Noriaki Tsubota, Masahiko Kubo, Kazuhisa Edahiro | 1994-04-05 |
| 5296328 | Magnetic brush development process | Akira Nakakuma, Naruo Yabe, Akihiro Watanabe, Yoshihisa Kuramae, Toshio Nishio +3 more | 1994-03-22 |
| 5225300 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Akihiro Watanabe, Yoshihisa Kuramae | 1993-07-06 |
| 5215850 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Akihiro Watanabe, Yoshihisa Kuramae | 1993-06-01 |
| 5212033 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Akihiro Watanabe, Yoshihisa Kuramae | 1993-05-18 |
| 5209999 | Electrophotographic tower for negative charging | Noriaki Tsubota, Masahiko Kubo, Akihiro Watanabe, Yoshihisa Kuramae | 1993-05-11 |
| 5202730 | Developing process using two-component type magnetic developer | Akira Nakakuma, Noriaki Tsubota, Masahiko Kubo, Kazuhisa Edahiro | 1993-04-13 |
| 5166732 | Developer agitating method and developer agitating apparatus | — | 1992-11-24 |
| 5078085 | Developing process | Kazuhisa Edahiro, Masahiko Kubo | 1992-01-07 |
| 4977431 | Fixing apparatus and method of controlling temperature of the same | — | 1990-12-11 |