Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6917776 | Discharge wire, method of manufacturing discharge wire and electrification device | Nobuhiro Hayashi, Toru Kabashima | 2005-07-12 |
| 6636719 | Image forming apparatus with vibration-caused image defect prevention feature | Jun Asai, Keizo Ogara | 2003-10-21 |
| 6605165 | Method of manufacturing discharge wire | Nobuhiro Hayashi, Toru Kabashima | 2003-08-12 |
| 6501492 | Image forming apparatus for outputting image in response to digital image signal | Kazushige Nishiyama, Yuichiro Toyohara | 2002-12-31 |
| 6226108 | Image processing apparatus and method for reproducing high quality image in low-density portion | Yuichiro Toyohara, Yukio Watanabe | 2001-05-01 |
| 5991557 | Image forming apparatus having a charging member with plural charging modes | Takeo Yamamoto, Keizo Takura | 1999-11-23 |
| 5987275 | Fixing apparatus with power control based on temperature gradient | Yuichiro Toyohara | 1999-11-16 |
| 5907739 | Image forming apparatus | Takeo Tsunemi, Mitsuka Abe | 1999-05-25 |
| 5790917 | Developing device having a residual toner amount discrimination feature and image forming apparatus using same | Keizo Takura | 1998-08-04 |
| 5790918 | Image forming apparatus and related method of image forming | — | 1998-08-04 |
| 5771314 | Image processing apparatus for inputting and processing plural types of image signals | Yoshihiko Suzuki, Satoru Kutsuwada, Keizo Isemura | 1998-06-23 |
| 5760930 | Electrophotographic image forming apparatus with density regulating mechanism | Nobumasa Fukuzawa, Hiroyuki Ichikawa | 1998-06-02 |
| 5726759 | Image forming apparatus | Yukio Watanabe, Mitsuka Abe, Yuichiro Toyohara | 1998-03-10 |
| 5677774 | Image processing apparatus for inputting and processing plural types of image signals | Yoshihiko Suzuki, Satoru Kutsuwada, Keizo Isemura | 1997-10-14 |
| 5671462 | Fixing device having a power supply control element for controlling a temperature of a heat member | Yuichiro Toyohara | 1997-09-23 |
| 5563645 | Electrophotographic image forming method of digital type having automatic image quality setting mechanism | Nobumasa Fukuzawa, Hiroyuki Ichikawa | 1996-10-08 |
| 4992831 | Image forming apparatus with plural developing devices | — | 1991-02-12 |