Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10437189 | Image forming apparatus with re-conveyance mechanism | Kunihiko Kondo, Hotaka Kakutani | 2019-10-08 |
| 10275190 | Image forming apparatus provided with exposure head having light emitting portions and lens array | Masahiko Hayakawa, Toshio Furukawa, Junichi Yokoi | 2019-04-30 |
| 10161839 | Apparatus for measuring coefficient of restitution and hardness tester | Takashi Yamamoto, Tsutomu Obata, Koji Kadogawa | 2018-12-25 |
| 9201377 | Image forming apparatus | Toshio Furukawa | 2015-12-01 |
| 9081346 | Image forming apparatus | Toshio Furukawa | 2015-07-14 |
| 9046867 | Developing unit having slidably movable receptable | Hikaru Yoshizumi, Susumu Sakuma, Shougo Sato | 2015-06-02 |
| 8995850 | Image forming apparatus with cartridge-replacement indicator | Ayumi Hiro | 2015-03-31 |
| 8934797 | Image forming apparatus having control device for applying control biases to collection members | Masashi Imai, Yoh Nishimura | 2015-01-13 |
| 8774658 | Image forming apparatus including control unit that executes energy control by controlling biases | Takashi Yasuda, Toshio Furukawa, Yohei Nishimura | 2014-07-08 |
| 8639140 | Image forming apparatus | — | 2014-01-28 |
| 8600255 | Image forming device that performs reverse-transfer operation in accordance with image forming condition | — | 2013-12-03 |
| 8515298 | Rotation speed control for an image forming apparatus fan | Katsuyuki Yokoi, Toshio Furukawa | 2013-08-20 |
| 8452200 | Image forming apparatus | Marika Ogiso, Yoh Nishimura | 2013-05-28 |
| 8364056 | Image forming device having cleaning member for cleaning belt | — | 2013-01-29 |
| 8315537 | Image-forming device having cleaning unit for removing developer | Hikaru Yoshizumi, Susumu Sakuma, Shougo Sato | 2012-11-20 |
| 8301046 | Image forming apparatus with condition setting for manual duplex mode | Toshio Furukawa, Katsuyuki Yokoi | 2012-10-30 |
| 8285161 | Image forming apparatus operable in monochrome and color printing modes | Toshio Furukawa, Yoh Nishimura | 2012-10-09 |
| 8265517 | Image forming apparatus having photosensitive member providing a belt with developer and cleaning member for cleaning the belt | Shougo Sato, Susumu Sakuma | 2012-09-11 |
| 8099010 | Image forming apparatus with controlled developing bias | — | 2012-01-17 |
| 8027606 | Image forming apparatus with condition setting for manual duplex mode | Toshio Furukawa, Katsuyuki Yokoi | 2011-09-27 |
| 8005401 | Image forming apparatus including charge removal member | Toshio Furukawa, Katsuyuki Yokoi | 2011-08-23 |
| 7711299 | Color image forming apparatus with discharge member | Toshio Furukawa, Katsuyuki Yokoi | 2010-05-04 |
| 7565831 | Production method of indentation curve and hardness test method | — | 2009-07-28 |
| 6755075 | Ultra micro indentation testing apparatus | Nobuo Nagashima, Saburo Matsuoka | 2004-06-29 |
| 6546808 | Method of evaluating high fatigue strength material in high tensile strength steel and creation of high fatigue strength material | Tatsuaki Sawai, Saburo Matsuoka, Takayuki Abe, Etsuo Takeuchi, Hisashi Hirukawa +2 more | 2003-04-15 |