Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10061226 | Image forming apparatus and image forming method | Kazuaki Kamihara, Yuuichiroh Uematsu, Tetsuya Muto, Tomohide Takenaka, Keita Sone +5 more | 2018-08-28 |
| 9989876 | Image forming apparatus and method for calculating a toner degradation rate | Mutsuki Morinaga, Tadashi Kasai, Jun Hitosugi, Makoto Yasuda, Kunio Hasegawa +6 more | 2018-06-05 |
| 9684259 | Image forming apparatus | Takatsugu Komori, Emiko Shiraishi, Tadashi Kasai, Jun Hitosugi, Kunio Hasegawa +4 more | 2017-06-20 |
| 9599946 | Image forming apparatus | Mutsuki Morinaga, Tadashi Kasai, Jun Hitosugi, Makoto Yasuda, Kunio Hasegawa +4 more | 2017-03-21 |
| 9588460 | Image forming apparatus | Tadashi Kasai, Jun Hitosugi, Kunio Hasegawa, Emiko Shiraishi, Wakana Itoh +3 more | 2017-03-07 |
| 9513594 | Protective layer forming device and image forming apparatus | Kunio Hasegawa, Hiroshi Nakai, Kenji Komito, Tadashi Kasai, Jun Hitosugi +6 more | 2016-12-06 |
| 9488931 | Image forming apparatus | Makoto Yasuda, Jun Hitosugi, Mutsuki Morinaga, Emiko Shiraishi, Wakana Itoh +14 more | 2016-11-08 |
| 9316950 | Development device, process cartridge, image forming apparatus incorporating same, and developer amount adjustment method therefor | Tomoko Takahashi, Yoshiyuki Fukuda, Yoshio Hattori, Sho Akiyama, Yoshinori Nakagawa +3 more | 2016-04-19 |
| 9316987 | Image forming apparatus and image forming method | Jun Hitosugi, Mutsuki Morinaga, Emiko Shiraishi, Wakana Itoh, Hitoshi Yamamoto +4 more | 2016-04-19 |
| 9298125 | Image forming apparatus and image forming method | Hiroyuki Sugiyama, Tomoko Takahashi, Yoshinori Nakagawa, Masahiko Shakuto, Ryuji Yoshida +3 more | 2016-03-29 |
| 9280125 | Image forming apparatus | Wakana Itoh, Tadashi Kasai, Jun Hitosugi, Emiko Shiraishi, Makoto Yasuda +4 more | 2016-03-08 |
| 9250593 | Image forming apparatus and image density control method employed by the image forming apparatus | Ryusuke Mase, Taichi Urayama, Tomoko Takahashi, Shotaro Hoshi, Ryuji Yoshida +4 more | 2016-02-02 |
| 9244374 | Image forming apparatus | Hiroyuki Sugiyama, Ryoh Tanoue, Masahiko Shakuto, Tomoko Takahashi, Yoshinori Nakagawa +4 more | 2016-01-26 |
| 9052643 | Image forming method and image forming apparatus for transforming a toner image into a semi-film | Takashi Bisaiji, Hiroomi Tamura, Hirokatsu Suzuki, Satoru Ishikake | 2015-06-09 |
| 9042748 | Image forming apparatus | Taichi Urayama, Ryuji Yoshida, Tomoko Takahashi, Shotaro Hoshi, Hiroyuki Sugiyama +4 more | 2015-05-26 |
| 8824932 | Development device, and process cartridge and image forming apparatus incorporating same | Katsumi Masuda, Nobuyuki Taguchi, Yuuki Satoh, Toshiki Hayashi, Kyohta Koetsuka +4 more | 2014-09-02 |
| 8682230 | Development device, process cartridge, and image forming apparatus including same having multiple recesses formed on a developer bearer | Nobuyuki Taguchi, Katsumi Masuda, Yuuki Satoh, Toshiki Hayashi, Kyohta Koetsuka +4 more | 2014-03-25 |
| 8331834 | Developing unit, image forming apparatus incorporating same, and process cartridge including same | Kyohta Koetsuka, Masayuki Ohsawa, Yoshiyuki Takano, Katsumi Masuda, Yoshio Hattori +2 more | 2012-12-11 |
| 8326189 | Developing device, process cartridge, and image forming apparatus | Yoshiyuki Fukuda, Katsumi Masuda, Nobuyuki Taguchi, Yuuki Satoh, Yasufumi Takahashi +4 more | 2012-12-04 |
| 8135315 | Developer regulating member in a developing unit, process cartridge including same, and image forming apparatus incorporating same | Katsumi Masuda, Yoshio Hattori, Hiroyuki Uenishi, Yuji Suzuki, Kyohta Koetsuka +5 more | 2012-03-13 |
| 7813680 | Developing device, and image forming apparatus and process cartridge comprising the same | Katsumi Masuda, Yoshio Hattori, Hiroyuki Uenishi, Yuji Suzuki | 2010-10-12 |
| 7474867 | Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography | Takayuki Maruta, Takuji Yoneda | 2009-01-06 |
| 7283774 | Developing method using a two-ingredient type developer and image forming apparatus using the same | Akira Azami | 2007-10-16 |
| 7095971 | Developing method and apparatus using two-ingredient developer with prescribed coating of particles and resin | Akira Azami | 2006-08-22 |
| 7003235 | Developing device for suppressing variations in bulk density of developer, and an image forming apparatus including the developing device | Akira Azami | 2006-02-21 |