Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9606469 | Image forming apparatus and charging bias adjusting method therefor | Saki Izumi, Hiroyuki Sugiyama, Shunichi Hashimoto, Naoyuki Ozaki, Kayoko Tanaka +1 more | 2017-03-28 |
| 9316950 | Development device, process cartridge, image forming apparatus incorporating same, and developer amount adjustment method therefor | Tomoko Takahashi, Yoshiyuki Fukuda, Yoshio Hattori, Sho Akiyama, Takamasa Ozeki +3 more | 2016-04-19 |
| 8970858 | Operator guidance system and image forming apparatus incorporating same | Mami Akiyama, Yasuhiro Sagawa, Masaharu Furuya, Manabu Izumikawa, Yoshio Hattori +3 more | 2015-03-03 |
| 8909112 | Image forming apparatus having support members with predetermined electric potentials | Tomoko Takahashi, Naoyuki Ozaki, Ryuji Yoshida, Nobuyuki Koinuma, Hiroaki Maeda +4 more | 2014-12-09 |
| 8818255 | Image forming apparatus with fixing liquid applicator | Ryuji Yoshida, Nobuyuki Koinuma, Tomoko Takahashi, Mugijirou Uno, Hideki Zemba +4 more | 2014-08-26 |
| 8774694 | Image forming apparatus including sealed fixing liquid applying section | Ryuji Yoshida, Nobuyuki Koinuma, Tomoko Takahashi, Hideaki Kanaya, Shunichi Hashimoto +4 more | 2014-07-08 |
| 8761651 | Image forming apparatus | Ryuji Yoshida, Nobuyuki Koinuma, Mugijirou Uno, Tomoko Takahashi, Hideki Zemba +4 more | 2014-06-24 |
| 8320799 | Recycling image forming apparatus | Ryuji Yoshida, Nobuyuki Koinuma, Hideki Zenba, Naoyuki Ozaki, Hiroaki Maeda +4 more | 2012-11-27 |
| 8199381 | Pasting apparatus and image forming apparatus | Kazuhisa Sudo, Reki Nakamura, Megumi Ohtoshi, Yukiko Iwasaki, Kazuhiko Yuki +3 more | 2012-06-12 |
| 8023877 | Image forming apparatus capable of forming glossy color image | Kazuhisa Sudo, Yukiko Iwasaki, Megumi Ohtoshi, Reki Nakamura, Masafumi Yamada +2 more | 2011-09-20 |
| 7997320 | Sheet cutter and image forming apparatus including the sheet cutter | Kohsuke Yamamoto, Kazuhisa Sudo, Reki Nakamura, Takehide Mizutani, Yukiko Iwasaki +5 more | 2011-08-16 |
| 7960084 | Method of preparing information recording medium | Nobuyuki Koinuma, Kazuhisa Sudo, Megumi Ohtoshi, Reki Nakamura, Masafumi Yamada +2 more | 2011-06-14 |
| 7909081 | Sheet laminator, image forming apparatus, and sheet laminating method | Kazuhisa Sudo, Reki Nakamura, Megumi Ohtoshi, Yukiko Iwasaki, Kazuhiko Yuki +5 more | 2011-03-22 |
| 7883089 | Image forming apparatus | Kazuhisa Sudo, Megumi Ohtoshi, Reki Nakamura, Masafumi Yamada, Toshihiro Sugiyama +3 more | 2011-02-08 |
| 7865121 | Image forming apparatus and recording medium | Yukiko Iwasaki, Kazuhisa Sudo, Reki Nakamura, Nobuyuki Koinuma, Toshihiro Sugiyama +3 more | 2011-01-04 |
| 7856189 | Image forming apparatus and a method of effectively detecting toner state in the same | — | 2010-12-21 |
| 7817953 | Image recording medium, sheet feeding device, and image forming apparatus | Reki Nakamura, Kazuhisa Sudo, Megumi Ohtoshi, Masafumi Yamada, Toshihiro Sugiyama +4 more | 2010-10-19 |
| 7389060 | Image forming apparatus for controlling variation of image density and toner concentration | — | 2008-06-17 |
| 7177555 | Image forming process and image forming apparatus | Bing Shu, Mitsuo Aoki, Haruji Mizuishi, Masaru Tanaka, Shinji Tamaki +2 more | 2007-02-13 |
| 6763216 | Developing device and image forming apparatus including the same | Shuji Tanaka | 2004-07-13 |
| 6337957 | Image forming apparatus and developing device with improved self toner density control | Shinji Tamaki, Tsuyoshi Imamura, Hideo Yoshizawa, Junichi Terai, Masayuki Yamane +5 more | 2002-01-08 |