Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8867937 | Diffuse reflection output conversion method, attached powder amount conversion method, and image forming apparatus | Hideo Muroi, Yushi Hirayama, Hitoshi Ishibashi | 2014-10-21 |
| 8834189 | Rotatable connector device | — | 2014-09-16 |
| 8831449 | Image forming apparatus capable of optimally performing density fluctuation correction | Shingo Suzuki, Satoshi Kaneko, Koichi Kudo, Shinji Kato, Jun Yamane | 2014-09-09 |
| 8818216 | Image forming apparatus, image forming method, and computer program product | — | 2014-08-26 |
| 8818244 | Developing device and image forming apparatus | Yushi Hirayama, Hitoshi Ishibashi, Satoshi Kaneko, Hideo Muroi | 2014-08-26 |
| 8808008 | Rotatable connector device | — | 2014-08-19 |
| 8760724 | Gradation correction for an image forming apparatus | Satoshi Kaneko | 2014-06-24 |
| 8693053 | Image forming apparatus and correction effect verification method | — | 2014-04-08 |
| 8503895 | Image forming apparatus capable of stably controlling image density | — | 2013-08-06 |
| 8265494 | Image forming apparatus including a toner supply controller to control a supply of toner | Hiroyuki Kawamoto, Kazunari Tonami, Hiroshi Okuda | 2012-09-11 |
| 8233813 | Image forming apparatus and image-density control method | Akira Yoshida, Shin Hasegawa, Hitoshi Ishibashi, Yoshiaki Miyashita, Kohta Fujimori +4 more | 2012-07-31 |
| 8175470 | Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control information | Yasushi Nakazato, Kohji Ue, Osamu Satoh, Masahide Yamashita, Jun Yamane +2 more | 2012-05-08 |
| 8107837 | Image forming apparatus, control method thereof, program and recording medium | — | 2012-01-31 |
| 8095025 | Image forming apparatus capable of efficient toner concentration control | Hitoshi Ishibashi, Shin Hasegawa, Kohta Fujimori, Nobutaka Takeuchi, Kayoko Tanaka +2 more | 2012-01-10 |
| 8027605 | Image forming apparatus and image density control method | Nobutaka Takeuchi, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Kayoko Tanaka +2 more | 2011-09-27 |
| 7962054 | Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control information | Yasushi Nakazato, Kohji Ue, Osamu Satoh, Masahide Yamashita, Jun Yamane +2 more | 2011-06-14 |
| 7929873 | Image forming apparatus and image density control method | Nobutaka Takeuchi, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Kayoko Tanaka +4 more | 2011-04-19 |
| 7903269 | Abnormality determining apparatus, image forming apparatus including the abnormality determining apparatus, and abnormality determining method | Yoshinori Nakagawa, Hisashi Shoji, Yasushi Nakazato, Satoshi Ouchi, Nekka Matsuura +3 more | 2011-03-08 |
| 7903986 | Reuse method and a reusable device for an image forming apparatus having a first process linear velocity and a second image processing apparatus having a second process linear velocity | Kayoko Tanaka, Shin Hasegawa, Hitoshi Ishibashi, Kohta Fujimori, Nobutaka Takeuchi +2 more | 2011-03-08 |
| 7778555 | Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining method | Hisashi Shoji, Osamu Satoh, Yasushi Nakazato, Hitoshi Shimizu, Katsuaki Miyawaki +4 more | 2010-08-17 |
| 7751741 | Optical sensor and image forming apparatus including same | — | 2010-07-06 |
| 7693466 | Method for arranging image forming sections | Katsuaki Miyawaki, Takeshi Iijima, Yusuke Takeda, Sadayuki Iwai, Hideki Kosugi +1 more | 2010-04-06 |
| 7554574 | Abnormal state occurrence predicting method, state deciding apparatus, and image forming system | Hisashi Shoji, Katsuaki Miyawaki, Osamu Satoh, Masaaki Yamada, Yoshinori Nakagawa +4 more | 2009-06-30 |
| 7457550 | Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining method | Hisashi Shoji, Osamu Satoh, Yasushi Nakazato, Hitoshi Shimizu, Katsuaki Miyawaki +4 more | 2008-11-25 |
| 7359660 | Developing device, process cartridge and image forming apparatus loaded therewith | Yasushi Nakazato, Masaaki Yamada, Yoshinori Nakagawa | 2008-04-15 |