Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9201336 | Developing device and image forming apparatus including a toner bearing member having a predetermined relationship with toner | Yasuyuki Ishii, Yoshiko Ogawa, Yuuji Ishikura, Hideyasu Seki, Toshio Koike +1 more | 2015-12-01 |
| 9158228 | Development device and image forming apparatus incorporating same | Yoshiko Ogawa, Yasuyuki Ishii, Yuuji Ishikura, Hideyasu Seki, Tetsuro Hirota | 2015-10-13 |
| 8965254 | Development device, and image forming apparatus and process cartridge incorporating same | Yoshiko Ogawa, Yasuyuki Ishii, Yuuji Ishikura | 2015-02-24 |
| 8929782 | Development device, and image forming apparatus and process cartridge incorporating same | Yasuyuki Ishii, Tetsuro Hirota, Yoshiko Ogawa, Atsushi Kurokawa, Yuuji Ishikura +1 more | 2015-01-06 |
| 8376494 | Image forming device and image forming apparatus | Tetsuro Hirota, Masanori Horike, Shin Kayahara, Tomoko Takahashi | 2013-02-19 |
| 8259142 | Image forming apparatus with developer passage amount control electrodes | Tetsuro Hirota, Masanori Horike, Nobuaki Kondoh, Shin Kayahara, Tomoko Takahashi | 2012-09-04 |
| 8259141 | Image forming device based on direct recording method and image forming apparatus including the same | Masanori Saitoh, Masanori Horike, Nobuaki Kondoh, Tomoko Takahashi | 2012-09-04 |
| 8167410 | Image forming apparatus | Masanori Horike, Fuyuhiko Matsumoto, Masanori Saitoh, Nobuaki Kondoh, Shin Kayahara +1 more | 2012-05-01 |
| 7844191 | Image forming apparatus and image forming method performed by the image forming apparatus | Atsushi Tano | 2010-11-30 |
| 7835670 | Image forming apparatus reducing background contamination | — | 2010-11-16 |
| 7450870 | Developing device using one-component toner for an image forming apparatus, and a process cartridge including the developing device | Masato Iio | 2008-11-11 |
| 6795674 | Developing device for an image forming apparatus | Shuuichi Endoh, Yoshihiro Abe, Masahide Harada, Nobuhiko Umezawa | 2004-09-21 |
| 6775506 | Method and apparatus for image developing capable of effectively forming an even development agent layer | Shuuichi Endoh, Nobuhiko Umezawa | 2004-08-10 |
| 6643486 | Developing device for an image forming apparatus | Shuuichi Endoh, Yoshihiro Abe, Masahide Harada, Nobuhiko Umezawa | 2003-11-04 |
| 5805324 | Optical scanner | — | 1998-09-08 |
| 5426298 | Optical scanner | Nobuo Sakuma, Hiromichi Atsuumi, Akihisa Itabashi | 1995-06-20 |
| 5408095 | Optical scanner having an image forming mirror and means for reducing scanning line pitch irregularities | Hiromichi Atsuumi, Nobuo Sakuma | 1995-04-18 |
| 5233454 | Image forming reflecting mirror for constant speed optical scan and optical scanner | Nobuo Sakuma, Hiromichi Atsuumi | 1993-08-03 |
| 5157534 | Optical scanner | Takayuki Ohsawa, Nobuo Sakuma | 1992-10-20 |
| 5128795 | Scanning lens and scanning apparatus using scanning lens | Nobuo Sakuma | 1992-07-07 |
| 4995710 | Objective lens for optical disk | Seizoh Suzuki | 1991-02-26 |