Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10291792 | Reading apparatus determining whether a read is valid and image forming apparatus including the reading apparatus | Teruhiko Toyoizumi, Hirofumi Nakajima, Tatsuo Ishizuka | 2019-05-14 |
| 10054880 | Apparatus having a control unit for operating halogen lamp heaters based on duty cycle | Kenji Tamaki, Teruhiko Toyoizumi, Hirofumi Nakajima, Tatsuo Ishizuka | 2018-08-21 |
| 10007216 | Duty cycled halogen lamp image forming apparatus | Kenji Tamaki, Teruhiko Toyoizumi, Hirofumi Nakajima, Tatsuo Ishizuka | 2018-06-26 |
| 9618901 | Sheet humidification apparatus and humidification control method | Teruhiko Toyoizumi, Kenji Tamaki, Hirofumi Nakajima, Masaaki Uchiyama, Kosuke Sasaki | 2017-04-11 |
| 8837962 | Image forming apparatus with function for correcting deviation of image forming position | Youbao Peng, Akihiro Hayashi, Satoshi Ogata, Eiji Nishikawa, Takashi Nara | 2014-09-16 |
| 8818248 | Image forming apparatus | Takashi Nara, Fuminori Moro, Youbao Peng, Satoshi Ogata | 2014-08-26 |
| 8639131 | Belt drive apparatus and image forming apparatus | Youbao Peng, Satoshi Ogata, Takashi Nara, Akihiro Hayashi, Eiji Nishikawa | 2014-01-28 |
| 8412086 | Image forming apparatus, clear layer forming apparatus, and image forming system | Akihiro Hayashi, Youbao Peng, Satoshi Ogata, Takashi Nara, Toshiaki Tanaka | 2013-04-02 |
| 8223386 | Image forming apparatus with detecting devices for image positioning on reversed sheet | Hiroshi Oyama, Utami Soma, Atsushi Takahashi, Youbao Peng, Shinpei Kawasaki | 2012-07-17 |
| 8049931 | Image forming apparatus and image forming method for setting a margin region, a density change region, and regular density region | Atsushi Takahashi, Utami Soma, Youbao Peng, Hiroshi Oyama, Shinpei Kawasaki | 2011-11-01 |
| 7775520 | Paper sheet conveyance apparatus and image forming apparatus | Masaaki Goto, Hiroshi Oyama, Masayuki Watanabe, Shinpei Kawasaki | 2010-08-17 |
| 7751742 | Image forming apparatus and image forming system | Utami Soma, Atsushi Takahashi, Youbao Peng, Hiroshi Oyama, Shinpei Kawasaki | 2010-07-06 |
| 7634210 | Cleaning system for an image forming apparatus for margin-less printing and control method thereof | Utami Soma, Atsushi Takahashi, Youbao Peng, Hiroshi Oyama, Shinpei Kawasaki | 2009-12-15 |
| 7457009 | Image reading apparatus and image forming apparatus | Hiroshi Oyama, Katsunori Takahashi, Masayuki Watanabe, Shinpei Kawasaki | 2008-11-25 |
| 7197253 | Image forming apparatus including two CPUs to control a fixing device | Hiroshi Oyama, Masashi Sugano, Katsunori Takahashi, Masayuki Watanabe | 2007-03-27 |
| 7181149 | Image forming apparatus | Norio Joichi, Youbao Peng, Hiroshi Oyama, Katsunori Takahashi, Masayuki Watanabe +3 more | 2007-02-20 |
| 7154517 | Image forming apparatus | Shinpei Kawasaki, Hiroshi Oyama, Katsunori Takahashi, Masayuki Watanabe | 2006-12-26 |
| 6792225 | Switch and image forming apparatus | Masashi Sugano, Hiroshi Oyama, Katsunori Takahashi, Masayuki Watanabe | 2004-09-14 |
| 6311028 | Fixing apparatus with controlled heaters | — | 2001-10-30 |
| 6177739 | Electric power source for equipment having power saving mode, power saving control device and image forming apparatus having the power source | Masashi Sugano, Hiroshi Oyama, Masayuki Watanabe | 2001-01-23 |
| 5467173 | Speed control circuit for an optical scanning system driving motor for an image forming apparatus | Satoshi Sakata, Tomoo Kudo, Hiroyuki Watanabe | 1995-11-14 |
| 5412295 | Abnormality detection circuit for a motor for use in a copier | Kazuhisa Maruyama, Masaru Ushio, Junji Sato, Satoshi Sakata, Tomoo Kudo +2 more | 1995-05-02 |