Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10944810 | System, service determining method, and computer program product | Kenji Ueda, Takenori Oku, Hiroshi Nishida, Satoshi Hatanaka, Yasushi Nakazato +3 more | 2021-03-09 |
| 10228888 | System, method, and non-transitory recording medium for determining lifetimes of components of multifunction peripherals | Takenori Oku, Hiroshi Nishida, Satoshi Hatanaka, Kenji Ueda, Yasushi Nakazato +3 more | 2019-03-12 |
| 10025657 | Information processing system and failure diagnosis method | Takenori Oku, Hiroshi Nishida, Kentaro Seo, Shunsuke Hayashi, Yusuke Shibata +5 more | 2018-07-17 |
| 7003250 | Two component development apparatus and process cartridge | Junichi Sano | 2006-02-21 |
| 6873814 | Developing device using a two-ingredient type developer and image forming apparatus including the same | Tokuya Ohjimi, Fumihiro Sasaki, Hiroto Higuchi, Maiko Kondo, Toshio Koike +4 more | 2005-03-29 |
| 6856774 | Developing device including magnetic member provided on toner-scattering restraining device and image forming apparatus including the developing device | Atsushi Sampe, Masayuki Yamane, Tokuya Ohjimi, Junichi Sano, Toshio Koike +4 more | 2005-02-15 |
| 6792234 | Developing device having a developer carrier including main and auxiliary magnetic poles and image forming apparatus using the same | Hiroshi Ikeguchi, Tsukuru Kai, Toshihiko Yamanaka | 2004-09-14 |
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Kei Yasutomi, Osamu Ariizumi | 2004-08-17 |
| 6728504 | Developing device using a magnet brush and image forming apparatus including the same | Osamu Ariizumi, Nobuo Takami | 2004-04-27 |
| 6701114 | Image forming apparatus and image forming process unit with developer carried on a developer carrier | Hiroshi Ikeguchi, Tsukuru Kai | 2004-03-02 |
| 6597885 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Kei Yasutomi, Osamu Ariizumi | 2003-07-22 |
| 6442364 | Image forming apparatus having a developer carrier capable of preventing toner adhesion | Tsukuru Kai, Nobutaka Takeuchi, Nobuo Takami, Osamu Ariizumi | 2002-08-27 |
| 6125257 | Methods and systems for cleaning residual toner from image developing device | Hiroshi Yamasita, Hiroyuki Fushimi, Makoto Ohsaki, Kouta Fujimdri, Yasunori Kawaishi +1 more | 2000-09-26 |
| 5913092 | Picture design forming system and method toner for forming an image, transferring substance for forming a picture design | Takashi Bisaiji, Satoshi Hatori, Jun Okamoto, Mitsuru Takahashi | 1999-06-15 |
| 5648842 | Methods and systems for cleaning residual toner from image-developing device | Hiroshi Yamasita, Hiroyuki Fushimi, Makoto Ohsaki, Kouta Fujimdri, Yasunori Kawaishi +1 more | 1997-07-15 |
| 5327199 | Developing device for a color image forming apparatus | — | 1994-07-05 |
| 5270783 | Image forming equipment having improved toner sensing | Takashi Bisaiji, Kouji Hayashi, Noboru Sawayama, Takayuki Maruta, Norimitu Kikuchi +5 more | 1993-12-14 |
| 5227842 | Electrophotographic image forming apparatus which controls developer bias based on image irregularity | Kouji Hayashi, Takashi Bisaiji, Norimitsu Kikuchi, Noboru Sawayama, Takayuki Maruta +4 more | 1993-07-13 |
| 5131079 | Method of controlling a display and a display control device for a copying machine | Shozo Miyawaki, Mikio Miura, Masashi Kuno, Takashi Tsutsumi, Masami Higuchi +3 more | 1992-07-14 |