Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9304454 | Fixing device and image forming apparatus incorporating same | Takuya Suganuma, Takeshi Uchitani, Masaki Sukesako, Hiroki Ishii, Hironobu Takeshita +1 more | 2016-04-05 |
| 9235170 | Image forming apparatus capable of obtaining good fixed condition regardless of type of gradation sequence processing | Hiroyuki Sugiyama | 2016-01-12 |
| 9104159 | Image forming apparatus | Jun Shiori, Yukiko Iwasaki, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara +1 more | 2015-08-11 |
| 9025977 | Image forming apparatus | Hiroyuki Sugiyama, Masaki Sukesako, Hironobu Takeshita, Takuya Suganuma, Takeshi Uchitani +1 more | 2015-05-05 |
| 8849142 | Image forming device | Hiroyuki Sugiyama, Tokuya Ohjimi, Yukiko Iwasaki, Jun Shiori, Masaki Sukesako +3 more | 2014-09-30 |
| 8737866 | Image forming apparatus including a controller to control a cooling device to cool the image forming apparatus | Jun Shiori, Yukiko Iwasaki, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara +1 more | 2014-05-27 |
| 8655214 | Image forming apparatus for fixing a not-yet-fixed image | Hiroyuki Sugiyama, Tokuya Ojimi, Yukiko Iwasaki, Jun Shiori, Masaki Sukesako +2 more | 2014-02-18 |
| 8515323 | Sheet wrapping avoidable fixing apparatus and image forming apparatus | Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more | 2013-08-20 |
| 8275275 | Image forming apparatus | Emiko Ishikawa, Hiromi Ogiyama, Yasunobu Shimizu, Akio Kosuge, Ken Yoshida +4 more | 2012-09-25 |
| 8126346 | Apparatus and method for fixing an image | Koichi Kato, Hiroshi Nakai, Kazumi Suzuki, Kei Yasutomi, Hideki Kosugi +2 more | 2012-02-28 |
| 8080096 | Protecting agent for image bearing member and production method therefor, protection layer forming apparatus, image forming method, image forming apparatus, and process cartridge | Masahide Yamashita, Hiroshi Nakai, Masato Iio, Shinya Tanaka | 2011-12-20 |
| 7941075 | Image forming apparatus including a cleaner-less image carrier cleaning system | Emiko Shiraishi, Shigekazu Enoki, Hirokatsu Suzuki | 2011-05-10 |
| 7724394 | Image forming apparatus and image forming method using pseudo half tone processing with different resolutions | Kei Yasutomi, Hideki Kosugi, Hirokatsu Suzuki, Kohichi Katoh, Hiroshi Nakai +2 more | 2010-05-25 |
| 7693471 | Sheet wrapping avoidable fixing apparatus and image forming apparatus | Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more | 2010-04-06 |
| 7620336 | Apparatus and method for fixing an image | Koichi Kato, Hiroshi Nakai, Kazumi Suzuki, Kei Yasutomi, Hideki Kosugi +2 more | 2009-11-17 |
| 7346305 | Sheet wrapping avoidable fixing apparatus and image forming apparatus | Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more | 2008-03-18 |
| 7315711 | Image forming apparatus, process cartridge and cleaningless system | Osamu Ariizumi, Masahide Yamashita, Koji Suzuki, Yasushi Koichi, Shigekazu Enoki +3 more | 2008-01-01 |
| 7251429 | Image forming apparatus with an energy storage that can be discharged, and with a display of residual energy in the storage | Atsushi Nakafuji, Shigeo Kurotaka, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi +2 more | 2007-07-31 |
| 7224928 | Sheet wrapping avoidable fixing apparatus and image forming apparatus | Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more | 2007-05-29 |
| 7218879 | Image forming apparatus controlling polarity of residual toner and process cartridge for use in the same | Shigekazu Enoki, Koji Suzuki, Yasushi Koichi, Osamu Ariizumi, Kumiko Hatakeyama +3 more | 2007-05-15 |
| 7212753 | Image forming apparatus and process cartridge | Hirokatsu Suzuki, Hiroshi Nakai, Hideki Kosugi, Ichiro Kadota, Koichi Katoh +2 more | 2007-05-01 |
| 7107681 | Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller | Takashi Fujita, Hirokazu Ikenoue, Atsushi Nakafuji | 2006-09-19 |
| 7058330 | Image forming apparatus | Atsushi Nakafuji, Shigeo Kurotaka, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi +2 more | 2006-06-06 |
| 7010255 | Fixing device having a heating member and image forming apparatus including the same | Hirokazu Ikenoue, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi, Atsushi Nakafuji +4 more | 2006-03-07 |
| 6897409 | Image forming apparatus and fixing device therefor | Takashi Fujita, Hirokazu Ikenoue, Atsushi Nakafuji | 2005-05-24 |