Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109633 | Driving force transmission mechanism and image forming apparatus | Hideo Yoshizawa, Kiyonori Tsuda, Yutaka Takahashi, Emi Kita, Yuki Oshikawa +1 more | 2015-08-18 |
| 8923726 | Image forming apparatus incorporating developing device with first and second seals | Kiyonori Tsuda, Hideo Yoshizawa, Kohichi Utsunomiya, Yutaka Takahashi, Emi Kita +1 more | 2014-12-30 |
| 8843019 | Development device and image forming apparatus incorporating same | Hideo Yoshizawa, Kiyonori Tsuda, Emi Kita, Yutaka Takahashi, Yuki Oshikawa +1 more | 2014-09-23 |
| 8843033 | Developer supplier, image forming apparatus, developer supplying method and image forming method | Mugijirou Uno | 2014-09-23 |
| 8843015 | Imaging device, image forming apparatus, and process cartridge | Kohichi Utsunomiya, Kiyonori Tsuda, Hideo Yoshizawa, Emi Kita, Yutaka Takahashi +1 more | 2014-09-23 |
| 8428488 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2013-04-23 |
| 8121498 | Image forming apparatus and developer supply method therefor | Mugijiro Uno, Keiko Matsumoto, Yuki Oshikawa | 2012-02-21 |
| 8086117 | Image forming apparatus and developer replenishing method | Mugijirou Uno, Keiko Matsumoto, Yuki Oshikawa | 2011-12-27 |
| 8064807 | Developer supply system and image forming apparatus incorporating same | Maiko Koeda, Koichi Kato, Emi Kita, Keiko Matsumoto, Yuki Oshikawa +1 more | 2011-11-22 |
| 8000627 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2011-08-16 |
| 7826786 | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner | Takeo Suda, Shinichi Kawahara, Takatsugu Fujishiro, Tokuya Ojimi, Takeshi Tabuchi +15 more | 2010-11-02 |
| 7672635 | Method and apparatus for image forming and effectively applying lubricant to an image bearing member | Yoshiki Hozumi, Toshio Koike, Ken Amemiya, Masanori Kawasumi, Yuji Arai +5 more | 2010-03-02 |
| 7477856 | Method and apparatus for image forming capable of effectively preventing resonance of frequencies | Hiroshi Ono, Masanori Kawasumi, Yuji Arai, Toshio Koike, Ken Amemiya +5 more | 2009-01-13 |
| 7373101 | Method and apparatus for image forming and effectively applying lubricant to an image bearing member | Yoshiki Hozumi, Toshio Koike, Ken Amemiya, Masanori Kawasumi, Yuji Arai +5 more | 2008-05-13 |
| 7333744 | Image forming apparatus that charges a photosensitive member by superimposing an alternate current bias voltage on a direct current bias voltage as the charge bias voltage | Eiji Shimojo, Haruji Mizuishi, Tokuya Ojimi, Masanori Kawasumi, Ken Amemiya +6 more | 2008-02-19 |
| 7313347 | Cleaning device, process cartridge, image forming apparatus and toner | Takeshi Shintani, Ken Amemiya, Takaaki Tawada, Tokuya Ojimi, Toshio Koike +12 more | 2007-12-25 |
| 7292816 | Method and apparatus for electrophotographic image forming capable of effectively removing residual toner, a cleaning mechanism used therein, a process cartridge including the cleaning mechanism used in the apparatus, and toner used in the apparatus | Tokuya Ojimi, Toshio Koike, Takaaki Tawada, Takeshi Shintani, Yuji Arai +4 more | 2007-11-06 |
| 6226481 | Image forming apparatus with control over developing unit during an idle running of an intermediate image transfer body | Kazuyuki Sugihara, Takayuki Maruta | 2001-05-01 |