Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7970311 | Developing device and image forming apparatus using the same | Kenji Nakamura, Yuichiro Suzuki, Katsumi Kumada, Chikara Hiraoka | 2011-06-28 |
| 6701115 | Color electrographic apparatus with developing device having separated toner supply and recovery chambers | Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano | 2004-03-02 |
| 6516171 | Color electrographic apparatus with developing device having separated toner supply and recovery chambers | Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano | 2003-02-04 |
| 6321058 | Developing device with toner storing and recovery chambers | Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano | 2001-11-20 |
| 6144829 | Developing device and electrophotographic device | Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano | 2000-11-07 |
| 6038416 | Developing apparatus and image forming apparatus having the same | Tadashi Okano, Masahiko Saito, Isamu Terashima, Toru Miyasaka, Kazushige Oonishi | 2000-03-14 |
| 5797075 | Image forming apparatus having improved toner carrier arrangement | Masahiko Saito, Toru Miyasaka, Kazushige Oonishi, Isamu Terashima, Tetsuro Akasaki +1 more | 1998-08-18 |