Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8873991 | Power supply system, image forming apparatus having the same, and low-capacity AC processing circuit | — | 2014-10-28 |
| 8862004 | Image forming apparatus including chargers and a current detecing unit that detects a sum of currents of the chargers | Tsuyoshi Maruyama, Masahito Hamaya | 2014-10-14 |
| 8792798 | Image forming apparatus having a configuration to prevent electric discharge in a cleaning member | Masahito Hamaya, Tsuyoshi Maruyama | 2014-07-29 |
| 8737851 | Image forming apparatus with abnormal discharge detection | Tsuyoshi Maruyama | 2014-05-27 |
| 8725023 | Power supply system and image forming apparatus including the same | — | 2014-05-13 |
| 8676067 | Image forming apparatus | Tsuyoshi Maruyama | 2014-03-18 |
| 8611778 | Power supply system and image forming apparatus | — | 2013-12-17 |
| 8594521 | Image forming apparatus | Tsuyoshi Maruyama, Masahito Hamaya | 2013-11-26 |
| 8559841 | Multiple-output power supply unit including voltage generation circuits for applying voltages to loads and image forming apparatus having the power supply unit | — | 2013-10-15 |
| 8538282 | Image forming apparatus and method for controlling charger | — | 2013-09-17 |
| 8509633 | Heating device and image forming apparatus | — | 2013-08-13 |
| 8503900 | Power supply unit and image forming device having the same | — | 2013-08-06 |
| 8503896 | Image formation device and image formation method to prevent spark discharge | Masamitsu Takahashi | 2013-08-06 |
| 8472832 | Multiple-output power supply unit and image forming apparatus having the power supply unit | — | 2013-06-25 |
| 8391728 | Image forming apparatus and voltage applying device comprising a control unit for controlling another control unit when the other control unit is abnormally restarted | Tsuyoshi Maruyama, Masahito Hamaya | 2013-03-05 |
| 8385766 | Image forming apparatus and high voltage generating power supply including a power supply disconnect | — | 2013-02-26 |
| 8374520 | Image forming apparatus | — | 2013-02-12 |
| 8301044 | Image forming devices including electrification control units | Masahito Hamaya | 2012-10-30 |
| 8289356 | Light output device and image forming apparatus including the same | — | 2012-10-16 |
| 8284565 | Electronic apparatus | Akihiro Shibasaki, Tasuku Sugimoto | 2012-10-09 |
| 8285163 | High-voltage power supply for an image forming device | Kazushi Shumiya | 2012-10-09 |
| 8180238 | Voltage control in an image forming apparatus | — | 2012-05-15 |
| 8063584 | Light output device and image forming apparatus including the same | — | 2011-11-22 |
| 8050588 | Image forming apparatus with low voltage power supply | Hiroyuki Naganawa, Junji Uehara | 2011-11-01 |
| 8014174 | Image forming apparatus | — | 2011-09-06 |