Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648192 | Electrophotographic toner | Kazushige Inoue, Takashi Nagai, Toru Takatsuna | 1997-07-15 |
| 5614348 | Toner for non-magnetic one-component development and method for contact type development using the same | Kazushige Inoue, Takashi Nagai, Toru Takatsuna | 1997-03-25 |
| 5296328 | Magnetic brush development process | Kazuo Fuji, Akira Nakakuma, Naruo Yabe, Akihiro Watanabe, Toshio Nishio +3 more | 1994-03-22 |
| 5225300 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Kazuo Fuji, Akihiro Watanabe | 1993-07-06 |
| 5217835 | Two-component developer for use in dry development of electrostatic pattern | Akihiro Watanabe, Tsutomu Uezono, Mitsushi Kuroki, Naruo Yabe | 1993-06-08 |
| 5215850 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Kazuo Fuji, Akihiro Watanabe | 1993-06-01 |
| 5212033 | Electrophotographic toner for negative charging | Noriaki Tsubota, Masahiko Kubo, Kazuo Fuji, Akihiro Watanabe | 1993-05-18 |
| 5212038 | Developer and process for preparation thereof | Akihiro Watanabe, Katsumi OYAMA, Mitsushi Kuroki, Noriaki Tsubota | 1993-05-18 |
| 5209999 | Electrophotographic tower for negative charging | Noriaki Tsubota, Masahiko Kubo, Kazuo Fuji, Akihiro Watanabe | 1993-05-11 |