Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8483598 | Electrophotographic image forming method and apparatus with a cover film supplying device | Takuya Suganuma, Ryuji Yoshida, Yoshinori Nakagawa, Atsushi Kurokawa, Ichiro Kadota +8 more | 2013-07-09 |
| 7941075 | Image forming apparatus including a cleaner-less image carrier cleaning system | Emiko Shiraishi, Jun Yura, Hirokatsu Suzuki | 2011-05-10 |
| 7840152 | Image forming apparatus, process cartridge, cleaning system, and image forming apparatus with cleaning system | Yasushi Koichi, Koji Suzuki, Osamu Ariizumi, Kumiko Hatakeyama | 2010-11-23 |
| 7639957 | Image forming apparatus including controller to detect condition of image developer | Shinji Kato, Koji Suzuki, Yasushi Koichi, Wakako Murakami, Kumiko Hatakeyama | 2009-12-29 |
| 7499664 | Image processing apparatus, process cartridge, and cleaning system with residual toner retaining unit | Yasushi Koichi, Koji Suzuki, Osamu Ariizumi, Kumiko Hatakeyama | 2009-03-03 |
| 7315711 | Image forming apparatus, process cartridge and cleaningless system | Osamu Ariizumi, Masahide Yamashita, Koji Suzuki, Yasushi Koichi, Kumiko Hatakeyama +3 more | 2008-01-01 |
| 7218879 | Image forming apparatus controlling polarity of residual toner and process cartridge for use in the same | Koji Suzuki, Yasushi Koichi, Osamu Ariizumi, Kumiko Hatakeyama, Koichi Kato +3 more | 2007-05-15 |
| 7139517 | Developing method for an image forming apparatus and developing device using the same | Takayuki Maruta | 2006-11-21 |
| 7027760 | Developing method for an image forming apparatus and developing device using the same | — | 2006-04-11 |
| 7020421 | Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography | Osamu Ariizumi, Hisao Kurosu, Shinichi Namekata | 2006-03-28 |
| 6708015 | Developing device and image forming apparatus using the same | Hisao Kurosu, Chikara Imai | 2004-03-16 |
| 6597881 | Image forming apparatus | Satoshi Hatori, Takeshi Shintani, Shinichi Namekata, Shinji Kato, Akinori Kobayashi | 2003-07-22 |
| 5819145 | Image forming device for forming a uniform toner layer on a developing roller | Yoshiaki Tanaka, Iwao Matsumae, Hiroshi Hosokawa | 1998-10-06 |
| 5741616 | Method of developing latent electrostatic images and developer-bearing member | Yasuo Hirano, Jun Aoto, Kazuo Nojima, Koji Suzuki, Hiroshi Takashima +2 more | 1998-04-21 |
| 5674408 | Developer carrier capable of forming microfields thereon and method of producing the same | Koji Suzuki, Hiroshi Takashima, Naoki Iwata, Yuichi Ueno | 1997-10-07 |
| 5627630 | Developing apparatus having a toner supporting roller with an inner layer and surface layer | Iwao Matsumae, Yoshiaki Tanaka, Hiroshi Hosokawa | 1997-05-06 |
| 5508794 | Developer recycling system and developer cartridge therefor | Masumi Ikesue, Takeshi Iijima, Yuichi Ueno, Atsushi Kawamura, Michihito Ohashi | 1996-04-16 |
| 5474869 | Toner and method of developing | Masami Tomita, Kohichi Katoh, Tomoe Hagiwara, Koji Suzuki, Naoki Iwata +2 more | 1995-12-12 |
| 5451713 | Developing apparatus using a developer carrier capable of forming microfields | Koji Suzuki, Hiroshi Takashima, Naoki Iwata, Yuichi Ueno | 1995-09-19 |
| 5389733 | Developing device for an image forming apparatus | Yoshiaki Tanaka, Takeshi Motohashi, Fumihiro Kitahara, Koyo Hariyama | 1995-02-14 |
| 5315061 | Developing apparatus using a developer carrier capable of forming microfields | Koji Suzuki, Hiroshi Takashima, Naoki Iwata, Yuichi Ueno | 1994-05-24 |
| 5311263 | Developing apparatus for image forming equipment using developer carrier for forming microfields | Koji Suzuki, Naoki Iwata, Yuichi Ueno, Junko Tomita | 1994-05-10 |
| 5286918 | Developing apparatus using a developer carrier capable of forming microfields on the surface thereof | Naoki Iwata, Koji Suzuki, Hiroshi Takashima, Yuichi Ueno | 1994-02-15 |
| 5245391 | Developing device having surface microfields for an image forming apparatus | Koji Suzuki, Naoki Iwata, Yuichi Ueno, Junko Tomita | 1993-09-14 |
| 5239344 | Developing roller having insulating and conductive areas | Naoki Iwata, Koji Suzuki, Yuichi Ueno, Junko Tomita | 1993-08-24 |